The “Indo-Pacific”: Intellectual Origins and International Visions in Global Contexts

Abstract As the “Indo-Pacific” concept gains currency in public discourses on foreign policy, it remains poorly understood as an idea, due to inadequate surveys of its intellectual origins and international visions in global contexts. This article studies Karl Haushofer's theory of the “Indo-Pacific” as an organic and integral space primed for political consciousness. Haushofer not only laid the oceanographic foundation of the “Indo-Pacific” with novel evidence in marine sciences, ethnography, and philology, but also legitimated it as a social and political space. Mindful of Germany's geopolitical predicament in the interwar period and informed by sources in indology and sinology, Haushofer envisaged the political resurrection of South, East, and Southeast Asia against colonial domination, and conceived the “Indo-Pacific” vision for remaking the international order.


Introduction
This paper studies the historical "Indo-Pacific" theory in its academic and political contexts. It traces this concept of oceanic space to the innovations of the German geographer Karl Haushofer (1869-1946. At a time when modern natural and social scientists uncovered new evidence on alternative shapes of the world map, Haushofer politicized oceanography, ethnography, and philology to realign the Indian and Pacific Oceans as an integral space. The purpose of his intervention, however, was to forge an anticolonial vision in British, American, and Western European colonies in South, East, and Southeast Asia, and thus undermine the Western rivals of interwar Germany. By recovering Haushofer's political oceanography and anticolonial vision in the original "Indo-Pacific," scholars not only gain an important episode in the modern intellectual history of politicizing spaces, but also acquire a stimulating language to question what the contemporary "Indo-Pacific" discourse misses: the legacy of colonial and anticolonial politics along the fault lines of natural and social spaces.
In this survey of political thought and intellectual history, I aim to bridge a significant gap between the popular geopolitical reception and the scant theoretical exposition of the "Indo-Pacific" concept. Of late, the term has gained currency To understand the texture and structure of the original "Indo-Pacific" theory, it is necessary to consider the social, political, and intellectual contexts of Karl Haushofer. Born in Munich the eldest son of economist Max Haushofer Jr, Haushofer received a Gymnasium education and served the Bavarian Army in the late 1880s. After training and teaching at the Bavarian War Academy, he undertook a global journey that changed the trajectory of his career. Urged and assisted by his activist wife Martha Haushofer, he served as a military observer in Japan from February 1909to June 1910 On his journey to the East, Haushofer also eyewitnessed the social and political situations in British India, Ceylon, Singapore, and Hong Kong. Upon his return, Haushofer embarked on political-geographic studies, first on Japan, then broadly on global geopolitics. And upon his retirement as major general in the pivotal year of 1919, Haushofer met Rudolph Hess and, through him, Adolf Hitler. In spite of the slim link between Haushofer's theories and Nazi foreign policies, Haushofer is today remembered chiefly for his controversial associations with the Third Reich, as well as his son Albrecht's involvement in the 20 July plot to assassinate the Führer. In the 1920s-1930s, however, Haushofer tried to be both a patriotic strategist and an international visionary. And it is this Haushofer that sought to integrate the Indian and Pacific Oceans to galvanize Asian anticolonialism as a maritime route out of Germany's geopolitical predicament.
Indeed, Haushofer's "Indo-Pacific" theory emerged and matured in the 1920s-1930s, as a prescription for Germany and a vision for world politics, prior to the formation of the Third Reich's foreign policy. Haushofer presented a fully fledged, if not systematic, idea of the "Indo-Pacific" in the Geopolitics of the Pacific Ocean. The concept reappeared in the Building Blocks of Geopolitics, Geopolitics of Pan-Ideas, and German Cultural Politics in the Indo-Pacific Space. 5 In this paper, I reconstruct Haushofer's own account of the "Indo-Pacific" concept in his major treatises on political oceanography, especially the Pacific Ocean. The subtitle of the 1924 text-"studies on the interrelations between geography and history"bespeaks Haushofer's method and purpose. Haushofer aimed to offer an alternative account of historical patterns grounded in political geography and oceanography rather than artificial borders based on historically contingent divisions of norms, religions, and institutions. As his paeans to Georg Forster, Georg Christoph Lichtenberg, and Alexander von Humboldt in both Pacific Ocean and Indo-Pacific Space make clear, Haushofer placed himself forthright into the tradition of "geo-historical" thought on customs and mores from early modern natural jurisprudence that ran from the Enlightenment to nineteenth-century German political theory. 6 Haushofer considered Germany's "Middle European" geography, in contrast to the "Atlantic and the Pacific," a major impediment to political growth. 7 Of course, the anxiety over a landlocked geography unfavourable to global commerce is a recurring motif in modern German political thought. But Haushofer's ambition was to offer a novel theorization of this historical concern, hence a new answer to the old question. In this sense, he constructed the "Indo-Pacific" theory in search of a place for landlocked Germany in the maritime space between states. Yet Haushofer's "Indo-Pacific" theory went beyond the Weimar political agenda to call for a global anticolonial vision. Eager to build an international "Indo-Pacific" strategy, Haushofer sailed to broader temporal and spatial horizons. He not only legitimated the spatial integration of the Indian and Pacific Oceans in virtue of their oceanographical linkage, but argued that the "Indo-Pacific" space was primed for political selfconsciousness, especially in the light of nascent anticolonial movements. Accordingly, the political resurrection of nations along the "Indo-Pacific" maritime belt would subvert Anglo-American and Western European colonial domination, and in this way remake the international order.
Haushofer endowed significant normative force in the "Indo-Pacific" as he leveraged the concept for an anticolonial vision. Thus I argue that the "Indo-Pacific" is a substantive theory, whereas a more notorious concept such as Lebensraum remains largely rhetorical in Haushofer's political thought. At the same time, the ambition of the "Indo-Pacific" vision compelled Haushofer to expand his sources and upgrade his methods. Consequently, Haushofer deployed a rich layer and a wide array of evidence in oceanography, historical philology, and ethnography to make the case for the "Indo-Pacific" as one natural, social, and political space.
The political oceanography of the "Indo-Pacific" The first step to recover and rethink Haushofer's "Indo-Pacific" is to examine the architecture of his political oceanography. To preempt the charge of artifice and arbitrariness against the invention of the neologism "Indo-Pacific," Haushofer forewarned his critics that the union of the Indian and Pacific Oceans is more natural than their separation. He insisted that, in fact, it is the natural "Indo-Pacific" world that had been carved up by artificial and arbitrary borders. Of course, Haushofer, too, divided the global oceanic space. For instance, he defined the European Atlantic and the "Indo-Pacific" as natural "counterspaces." But what he meant by this term is not merely an "oceanic counterspace of a landmass separated only by a meridional ditch." 8 Rather, he sought to demonstrate what a space should have been on the grounds of marine-biological and oceanographic evidence. In this case, "animal geography" (Tiergeographie) naturally separates the "Indo-Pacific" and the Atlantic oceans, whereas one continuous "life unit" (Lebenseinheit) spans the Indian and Pacific regions. 9 That is why an artificial "Indo-Atlantic" space-even if it were forced upon the natural "Indo-Pacific" space by British, American, and European colonial powers-cannot last long. 10 In this way, Haushofer leveraged the oneness of animal life to legitimate the reintegration of historically dispersed human life. The underlying theme is to redeem and restore nature: "animal geography"-the routes of fishes swimming from Madagascar to the Austroasiatic coasts-have more to teach political societies than international treaties. Later in Geopolitics of Pan-Ideas, Haushofer offered a historico-anthropological argument in support of the "animal-geography" thesis. He suggested that, at first, humans were all inclined to pacify their individual seas. 11 Over time, societies legitimated the sociopolitical division of the sea through customs. Reversely, the redemarcation of the seas was a distinctly modern project. For it was then possible, in the age of modern oceanography, to reconstruct the original maritime space and reimagine the political lives of earlier, even earliest, times. In short, Haushofer placed the temporal priority and logical necessity of the modern "Indo-Pacific" in its continuity and antiquity.
After laying the natural foundation of the "Indo-Pacific" space, Haushofer deployed further oceanographic evidence to make it a social space. Crucially, Haushofer designated the "Indo-Pacific" a bounded "life realm" (Ökumene), and separated it from the "no-life realm" (Anökumene). He divided the two spaces along the "southern borders" set naturally by the permanent "good west winds" in the southern seas and the oceanic currents of Antarctica. 12 According to Haushofer, these demarcations of the "purely oceanic dreamland of the southern border zone" are "more acceptable from a physical point of view," precisely because the winds and currents also determine the operations of human activities: sailing, steamship, and fleet routes, which in turn shape the contours of power in international politics. 13 8 Haushofer, Geopolitik des Pazifischen Ozeans, Ch. 2 ("Raumbild des Grossen Ozeans nach Flächen, Grenzen und Lage"), 35: "so sehen wir den Gegenraum Europas, nicht nur den ozeanisch bestimmten Gegenraum einer nur durch einen meridionalen Graben getrennten Landmasse, mit dem Indischen Ozean zusammen eine in manchem verwandte Lebenseinheit bilden, wie ja auch der pazifische Küstentyp durch die Sundasee und das australasiatische Mittelmeer hinüber in den indischen Ozean greift, wie auch die Tiergeographie ein indo-pazifisches Verbreitungsgebiet dem atlantischen gegenüberstellt." 9 Ibid. See also Haushofer, "Geopolotik und Kaufmann," 276. Across his multiple works, Haushofer defines the "Indo-Pacific" as a whole against the "Atlantic" or "Eur-Amerika." 10 Haushofer, Geopolitik des Pazifischen Ozeans, 161. 11 Haushofer, Geopolitik der Pan-Ideen, 53. 12 Haushofer's many oceanographic sources will be explored below. Here, note that Haushofer was a colleague of the great explorer of Antarctica Erich von Drygalski (1865Drygalski ( -1949 at Ludwig-Maximilians-Universität München. Haushofer joined the faculty in 1921. Drygalski tought at Munich from 1906 until his death. During his tenure, his explorations also expanded to Spitsbergen, North America, and Asia. 13 Haushofer, Geopolitik des Pazifischen Ozeans, Ch. 13 ("Südseerand und Australasia"), 181: "Das wären glaubhaftere Grenzen für die politische Ozeanographie, aus der physischen heraus eher annehmbar, weil mit großen Segel-, Dampferund Flottenwegen, also mit Machtlinien zusammenfallend." It is worth noting that Haushofer deliberately chose the Greek-derived term Ökumene (οἰκουμένη)-language of the geophysical discipline of settlement geography that still remains in use by physical scientists today-over the strictly German Lebensraum-language of the humanistic political geography. No doubt a student of the popularizer of the term Lebensraum Friedrich Ratzel , Haushofer invoked the term throughout his writings. Elsewhere, he spoke not only of the pazifischen Lebensraum and the indischen Lebensraum, but also of the indo-pazifischen Lebensraum and the indopazifisch-ozeanischen Lebensraums. 14 Nevertheless, Haushofer's Lebensraum falls short of a coherent normative concept. Rather, the word was used loosely to form a motley of expressions. For instance, Haushofer rhetorically referred to the chinesische Lebensraum, even though he clearly believed in no such thing as one single "Chinese living space." 15 Therefore I argue that scholars grasp Haushofer's geopolitical thought better if they look beyond the Lebensraum (and its Japanese reception, 生存圏) as the key. 16 In fact, Haushofer's more ingenious theories of political space have been overshadowed by the notoriety of the Lebensraum. In the past two decades, scholars have laboured to debunk the myth that Haushofer's Lebensraum shaped the foreign policies of the Third Reich and its Japanese ally. 17 Here, I endorse that argument via a different route, by suggesting that Haushofer used Lebensraum as a generic, indefinite, and even promiscuous term. By contrast, his richer spatial thought lies in grander political visions, such as the "Indo-Pacific." Haushofer's rhetorical method served the purpose of his intervention: to evoke a normative vision for the global space of international politics. To legitimate his political oceanography, Haushofer sought to mix the terminologies of the geosciences. 14 Here, the rhetorical force lies in the synthesis of interdisciplinary languages itself. Haushofer's goal was to validate a younger and more controversial concept by marrying it to seemingly more natural and neutral, and certainly older and more authoritative, sister disciplines. 18 In fact, I will show that Haushofer also turned to historical ethnography and philology to politicize oceanography. Generally speaking, Haushofer employed a wider range of academic evidence than earlier and contemporary political theorists of space. With these tools at hand, Haushofer further politicized the space of the sea by reimagining past political lives and exploiting their potential in his own time.
The sea space as a life space and a political space Haushofer framed the "Indo-Pacific" oceanic space as a site for social and political life, both in the past and for the future. Ostensibly, rehabilitating the "Indo-Pacific" mirrors the taming of the Atlantic. So this crude analogy legitimates the politicization of the "Indo-Pacific" by reference to Anglo-American domination across the Atlantic. Haushofer realized, however, that in both cases a critical challenge is the place of the indigenous people in a politicized oceanic space. In response, he recognized indigenous political cultures in the Indian and Pacific regions.
Haushofer's concept of "sea nomads" is eerily reminiscent of Carl Schmitt's later designation of hostile maritime nations as "fishmen," but it is important to tell them apart. To Schmitt's "fishmen" the time and space on land seem "strange and incomprehensible." 23 Such an idea is strictly in line with the "land-versus-sea" trope in Anglo-German thought since at least the sixteenth century. Already in Der Weisskunig, the Hapsburg Empire is ruled by the old and new "White Kings" melanesischen Sprachen," Abhandlungen der Philologisch-Historischen Klasse der Königlich-Sächsischen Gesellschaft der Wissenschaften Leipzig 8/4 (1882), 380-541; Franz Bopp, Über die Verwandtschaft der malaiisch-polynesischen Sprachen mit dem Indogermanischen (Berlin, 1841). Bopp is influenced by his family's experience in the chaotic Republic of Mainz, a historical memory of the Prussian Enlightenment. 21 Otto Krümmel, Handbuch der Ozeanographie, 2 vols. (Stuttgart, 1907-11). He speaks of not only "Bereiche des ganzen Pazifischen und Indischen Ozeans (mit Ausnahme der höchsten Breiten)" but also "die südatlantisch-indischen" etc. at 480; see also 489, 610, 720. Krümmel's completion of Heinrich Georg von Boguslawski's Handbuch der ozeanographie (1884-7) and his succession to geographer Theobald Fischer were important to German oceanography, as it lagged behind that of Britain, sponsor of the 1872-6 Challenger expedition, which yielded insights on the global maritime distribution of coral reefs, key evidence on Indo-Pacific continuity. Contemporary research continues to confirm the importance of the Indo-Pacific juncture as a whole to marine biodiversity, e.g. P. de Deckker, "The Indo-Pacific Warm Pool," Geoscience Letters 3/20 (2016) (Frederick III and Maximilian I), France by an aquatic "Blue King," and Venice by a thoroughly maritime "King of Fish." There, the terrestrial "White King" is portrayed as antagonistic and superior to the "fishmen," capturing many cities of the King of Fish largely unopposed. 24 This "terrestrial-versus-maritime" dichotomy, along with the "Behemoth-versus-Leviathan" allegory, forms a tradition of representing land and sea powers in Western political and literary languages. In Schmitt's time, Lord Salisbury reminded the German ambassador and Queen Victoria, "We are fish"; 25 in 1922, T. S. Eliot alluded to the "fishmen" as an amphibious hybrid metaphor for "Englishness," possibly inspired by Shakespeare's Caliban. 26 The reimagination of nations as land and sea creatures acquired increasing salience from early modern to modern Europe, in the fluid contexts of overseas colonial expansion and global naval rivalry. In this light, it is Schmitt's European "fishmen," not Haushofer's indigenous "sea nomads," that explicitly evokes this discourse.
Well versed in the "land-and-sea" historiography, Haushofer was no stranger to allegorizing maritime powers as alien creatures. However, mindful of his own purpose of politicizing the maritime space from within the "Indo-Pacific," Haushofer offered a "Herodotian" rationalization of maritime politics: that by virtue of their "virile nobility," indigenous leaders eschewed political corruptions inherent to a settled "stately form of life." Arguably, Haushofer was reimagining maritime nomadic politics through popular narratives of terrestrial nomadic cultures. After all, in addition to the "Blue King" and the "Fish King," the "White King" was also concerned with a "Green King" of the steppe-Hungary. And given Haushofer's own interest in Eurasian geopolitics, he might have transplanted terrestrial visions, such as the "Indo-Serian" Silk Road, onto the "Indo-Pacific" ocean. 27 Regardless, rather than style Germany's rivals as sea monsters, Haushofer sought to legitimate indigenous political lives on the sea, in order to shake the colonial dominions of adversarial powers. For this reason, Haushofer conceived terrestrial and maritime powers as cognate counterparts, not as irreconcilable antagonists. See discussion on the "Indo-Serian" below. 28 In contrast to Schmitt, Haushofer synthesizes land and sea perspectives. The idea that Haushofer preaches the irreconciliable opposition between terrestrial and maritime political cultures is erroneous. Dorpalen, for example, imagines that Haushofer believes in "an eternal conflict between land-locked continental peoples which are trying to advance onto and across the sea, and seafaring oceanic ones who strive to broaden their hold on the land." This view comes closer to Schmitt's, but even Schmitt's view is much less mechanical. See Dorpalen, The World of General Haushofer, 17-18.
The pivotal space of the "Indo-Pacific" Once Haushofer had established the "Indo-Pacific" way of life, he tried to locate a core area of the oceanic space as its own "Mediterranean." To this end, he zoomed in on a key subspace of the "Indo-Pacific": the area between the "Sunda Sea" and the "Australasian Mediterranean," which connects the Pacific coasts to the Indian Ocean. Here it is worth noting that the "Australasian Mediterranean" remains in academic use today, whereas the "Sunda Sea" is no longer referred to as a sea proper. 29 The "Sunda Shelf," or simply the "Sunda," with its encompassing straits and Pleistocene undersea river systems, was an ideal talking point for Haushofer, given its mysterious status as a half-buried block of land. 30 The vivid scene of Paleolithic inland waterways now floating underneath the ocean-waters within water-blurs the line between land, shelf and sea, continent and archipelago, freshwater and saltwater, as alternative spaces for political life. But Haushofer insisted on the Sunda being a sea, not merely a shelf, mainly to preserve the unity of the "Indo-Pacific." Situated between Java and Sumatra, the Sunda Strait links the Western Pacific and the Indian Oceans. Once the knot that binds the "Indo-Pacific" together was established as both a "former land" and "current sea," this "other Mediterranean" allowed Haushofer to move back and forth between these two definitions, make expedient arguments backed up by oceanographic evidence, and fend off objections from different angles. After all, if the Sunda were a threefold "sea within a Mediterranean within an Ocean," impossible to disentangle from within, it would be absurd to separate the two vast waters to its west and east-the Indian and Pacific Oceans. Again, the logical end point of this "Australasian Mediterranean" thought experiment is the unity of the "Indo-Pacific." Haushofer's project to turn the Sunda into the pivotal space of the "Indo-Pacific" again showcases his politicization of oceanography. At first glance, Haushofer's knowledge in the Sunda Strait seems largely consistent with Otto Krümmel's analysis of the "Sunda region" (Sundagebiet) and "Sunda pathway" (Sundastraße) in his Handbook of Oceanography (1910). The great German oceanographer saw the Sunda Strait as a key maritime crossroad between the Indian and Pacific Oceans, and an opening to the South China Sea. But Haushofer took a step further to historicize and theorize the Sunda as a site of political life. "Purely physical demarcation is not enough," he pronounced; "here the stately forms of life must be questioned about their inherent will to belong, if geopolitically stable design elements are to be created." 31 Thus Haushofer not only recognized the Sunda Strait as an oceanic pathway, but also interrogated its political potential. 29 Haushofer, Geopolitik des Pazifischen Ozeans, 35, 161. 30 Sunda possibly derives from सु द (prefix सु , PIE *h₁su-, name of either Vis n  u, a monkey, or a son of Nisunda who killed his brother Upasunda over the beautiful Apsara Tilottama; see Mahabharata, I.211). The Sunda Kingdom, loosely associated with western Java, proliferated in late medieval and early modern geographical references, up to European maritime encounters in the region. Paleogeographers refer to "Sundaland" as the region exposed above sea level throughout the last 2.6 million years. In anthropology, the biogeographic term "Sunda" has been used to account for the ethnogenesis of the "Sundanese" people. Sunda-related compounds abound in German geography: den Sundagraben, die Sundasee, die Sundainseln (Indonesian archipelago, including Große Sundainseln and Kleine Sundainseln), den Sundabogen, etc. But the term Sundasee is almost completely out of fashion.
Although, by present-day standards, Haushofer may be accused of misconstruing and mythologizing the "Sunda Sea," his intuition on Sunda's enduring strategic significance was prescient. Since the 1940s, the Sunda Strait has been a recurring geopolitical flashpoint. Three years after the publication of Indo-Pacific Space, this pivotal space was contended in the Battle of Sunda Strait (1942), where Rear Admiral Kenzaburo Hara's amphibious force sank allied cruisers HMAS Perth and USS Houston. More recently, international eyes returned to the same space when Joko Widodo gestured to shelve the plan of the China Railway Construction Corporation (CRCC) to build a bridge across the Sunda. 32 In the context of Weimar political thought, Haushofer's ambition was to undermine Western colonial powers without sparking another world war. Thus, in writing about the Sunda, he did not yet see it as a battleground in the next decade. Yet in geopolitical theory and anticolonial politics, the "Sunda Sea" is key to the very logic of the "Indo-Pacific" at the naissance of the concept.
The "Indo-Pacific" as a counterspace Haushofer's "Indo-Pacific" is an integral space, but also a mixed space and a counterspace, a bulwark against the "Atlantic" and "Euro-America." An obvious obstacle to this "Indo-Pacific" vision is that the Pacific Ocean itself is a hybrid space where Anglo-American influence is not only present, but dominant. Haushofer himself admitted that a space such as the "sea coast corridor" along the "Australian oceanic borderline," with both Asian and American geographical features, "is politically torn between the two." 33 Therefore the mere invocation of the "Pacific" in the "Indo-Pacific" seems to defeat his anti-Anglo-American purpose. Faced with this challenge, Haushofer labored to separate American influence from indigenous Pacific cultures. To this end, he turned to ethnography, especially the historico-anthropological kind practiced by his fellow Ratzel student, Leo Frobenius. 34 A savvy academic who neither associated with the race theorists nor declined research funding from the Führer and the Duce, Frobenius is known and remembered for his methodology: a procedure called paideuma that traces autochthonous variations, delineates "culture circles," and reconstructs "meaning" out of economic structures. 35 Although Frobenius's own work focused on Africa, his interlocutor and copresenter Fritz Graebner churned out copious papers on "cultural cycles and strata" in Oceania. 36 The "Frobenius-Graebner methods," Haushofer insisted, are the only way to resurrect "Malayo-Polynesian migrations and their heroic legend" as the pendulum of history first swayed between Paleolithic and Bronze Age cultures. In this way, Haushofer drew from ethnography to show that the "Indo-Pacific" had been highly political since the Paleolithic age, "which the Atlantic never was." 37 Still, Atlantic historians may press further on this question: how did Haushofer reckon with America as an "Atlantic-Pacific" player in "Indo-Pacific" oceanopolitics? To resolve this dilemma, Haushofer designated an Atlantic "American Pacific," and pitted the "Indo-Pacific" against it. In this manner, he both acknowledged America's location near the Pacific, and lumped the United States with the United Kingdom as kindred maritime colonial powers of the West.
Haushofer took several steps to make his case against the "American Pacific." First, he divided the oceanic space of the Americas into multiple spheres: "Euro-America" versus "American Pacific Culture," "Pan-America" versus "American Mediterranean," and so forth. 38 The weakness of the "American Pacific," Haushofer maintained in his Geopolitics of Pan-Ideas, lies in the tensions between these subspaces. He gloated, cheerfully, "The Pacific position of the US, primus inter pares … only very laboriously maintains an appearance of equilibrium on the great seas!" Further, he asserted that any idea of a "Pacific America" wouldn't stand the rigorous examination of "pan-thoughts that span the sea." 39 By this rather abstract statement, Haushofer suggested that the Pacific orientation of the US is not theoretically coherent, given the diversity of indigenous ideas across the geo-oceanic space. In other words, the natural seascape of an "American Pacific" would not align with the endogenous cultural forms, social thought, and political consciousness in the region.
Haushofer excluded the United States from "Indo-Pacific" membership. Instead, America belongs to the Atlantic oceanic space, where Germany remained excluded from Anglo-American, Iberian, and French maritime domination.
Overall, as Haushofer legitimized the "Indo-Pacific" as an integral space, he wrestled at length with the heterogeneity of the Pacific Ocean. This heterogeneity is not only endogenous-given the diversity of indigenous cultural forms across Pacific islands-but also exogenous, given European colonizations of the Americas. In the special case of American domination in the Philippines, Haushofer grappled with a transatlantic colonial state on course to become a transpacific coloniser. In response, Haushofer leveraged an ocean of evidence, especially historical ethnography, to cast the United States as an outsider and other to the "Indo-Pacific." Underlying this dazzling array of sources and methods was a concern for the alignment and misalignment of natural, cultural, and political spaces. Haushofer eulogized the endogenous diversity of indigenous "Indo-Pacific" cultures, norms, and institutions, but excoriated "non-Indo-Pacific" colonial dominations. This pattern of thinking was central to Haushofer's political oceanography. To fully grasp it, there is no better way than to appreciate the fluid contexts in which Haushofer put forth the "Indo-Pacific" vision. Next, I will outline Haushofer's political and intellectual contexts. In particular, I show how his intervention in Prussian political thought ended up calling for an "Indo-Pacific" vision involving India and China.

The genesis of the "Indo-Pacific" theory in global contexts
The fluid contexts of Haushofer's maritime spatial thought Haushofer identified the predicament of Weimar Germany as the same question of geography that had troubled German thinkers since the Prussian era. Although he quickly turned to the Indian and Pacific Oceans to formulate his own answer, Haushofer started with the Prussian tradition. At the very first invocation of the term "Indo-Pacific" in his 1924 treatise, Haushofer at length evoked historical memories of thinkers and practitioners in the Prussian Enlightenment who entertained high hopes for Prussia's global engagement. Haushofer boasted that the "Anglo-Saxons" who "awakened the slumbering gigantic space" were no inferiors to the Iberian and Romance peoples. He singled out the very few German figures who "saw it as a possible task for humanity and even for their own people" to venture into the Indian and Pacific oceans: the naturalist and revolutionary Georg Forster, who, like Haushofer, both theorized the steppe and navigated the sea; Alexander von Humboldt, whom the globe-trotting Haushofer dubbed "the traveller"; and interestingly, the refugee trader Johann Cesar VI. Godeffroy, "the first practical entrepreneur" whose family symbolically fled the land of the philosophes and religious persecutions in 1737 to start a commercial empire in the port city of Hamburg. 41 At its height, the fleets of J. C. Godeffroy & Sohn sailed across what 41 Ibid., 10, added emphasis: "Die Angelsachsen haben den schlummernden Riesenraum aufgeweckt, was weder Iberer, noch andere Romanen vermocht hatten, und worin in Deutschland nur ganz wenige Männer eine überhaupt mögliche Aufgabe der Menschheit und gar ihres eigenen Volkes sahen, wie Forster, Humboldt als Weltfahrer und das Hamburger Haus Godeffroy als erste praktische Unternehmer." Haushofer would call the "Indo-Pacific," between the South African coasts and the islands of Samoa, Fiji, and Tahiti. 42 Curiously, all three recipients of Haushofer's effusive eulogies-Humboldt, Godeffroy, and Forster-shared deep connections with Anglo-French traditions. Amongst them, Forster outright rejected Prussian politics. But they serve Haushofer's purpose for this precise reason. The point is that the worthy heirs of the ideal of global commerce, either martyred in revolutionary frenzies or forced to flee tyrannies at "the end of Enlightenment," founded another tradition. Translated into German and transplanted in Germany, this tradition was carried on by such intellectual giants as Humboldt, a symbolic link between the Enlightenment and Romanticism. Moreover, all three men were knit through one knot: their intellectual or monetary interests in the Indian or Pacific Oceans. But Haushofer's German thesis quickly called for "international aid." After all, it is no easy task to deflate the horizon-breaking maritime achievements of the "Romance" peoples in expanding the oceanic frontiers. Struggling to discredit the dominium maris tradition of non-Germanic Europe ever since the Phoenicians, Haushofer was neither able to enlist any mythic proto-Germanic maritime figures, nor willing to redeploy the trope of pseudo-Frankish-Germanic Troy versus proto-Greco-Latin Achaeans. 43 Instead, he reached out to orientalism to fill in where antiquarianism proved inadequate. To the maritime activity of the Mediterranean peoples from the Phoenicians to the Romans, and subsequently "Iberian and French contributions," he stingily and sardonically ascribed the label "more littoral and thalassic than oceanic." Here, the standard of comparison is not the maritime accomplishment of the Germans, but that of the Arabs and the Chinese, who used to come across each other, from time to time, "in their Indo-oceanic area." 44 What to make of Haushofer's seeming assignment of the "Indo-oceanic realm" to Chinese proprietorship in Sino-Arab maritime encounters? And what historical episodes was he referring to? Setting aside the steppe-style clash of the Abbasid Caliphate and the Tang Empire, Haushofer jumped straight to the height of Sino-Arab maritime trade in the Song-Ming Dynasties. In particular, he possibly alluded to the epic expeditions of Zheng He's treasure fleet from Southeast Asia to Arabia, across the entire (later) non-Anglo-American portion of the "Indo-Pacific." 45 It remains unclear whether by "their Indo-Pacific"  44 Haushofer, Geopolitik der Pan-Ideen, 54: "mehr litoral und thalassisch als ozeanisch steuern die Phoeniker, Hellenen, Römer und Romanen, diese in iberischer, dann französischer Fortwirkung bei; Araber bauen (von Chinesen ab und zu in ihrem indo-zeanischen Bereich durchfahren) die von Admiral Ballard in 'The rulers of the Indian Ocean' beschriebene Ideologie des Indischen Ozeans aus, ehe sich die Iberer, Niederländer, Franzosen, Briten ihrer der Reihe." The syntax is puzzling. In all likelihood, the possessive determiner here refers to the Chinese, or both the Arabs and the Chinese. I thank Steven Grundy and Amelia Bonea for our discussions on the grammar of the text. 45 Narratives on the exploits of the treasure fleets are not absent in Western print culture; see e.g. Juan González de Mendoza's Historia de las cosas más notables, ritos y costumbres del gran reyno de la China Haushofer implied maritime custodianship, if not sovereignty. At any rate, Chinese navigators neither saw the sea they traversed as "theirs" nor invented ideas comparable to a claim of maritime jurisdiction. 46 But to Haushofer, one historical anecdote of Sino-Arabian "Indo-Pacific" custodianship sufficed to dwarf the historical foundation of Euro-American maritime domination. With "smallness thrust upon them" by Haushofer, maritime rivals of Germany were deprived of historical legitimacy, hence contemporary agency, in the reconstructed "Indo-Pacific" space.
In this way, Haushofer's pledge to pave a new path for Germany called for a global vision. In view of his pivot to Asian sources against Euro-American influences, Haushofer's Weimar context was intertwined with the interwar politics of South and East Asia. In fact, Haushofer's international intellectual contexts were long in the making. To better understand the Sino-Indian foundation of his anticolonial "Indo-Pacific," it is important to examine the contexts of oriental studies and orientalism, especially Haushofer's reception of European scholarship on India and China.

Haushofer's Eastern contexts: the politics of indology and sinology
Haushofer assigned China and India key roles in the "Indo-Pacific" vision. He was keenly interested in both the cultural traditions and republican movements in India and China, thanks to both his German academic circles and interpersonal connections across Eurasia. It is tempting to ignore the vital places of India and China, given the singular place of Japan in Haushofer's writings. After all, he devoted numerous publications between 1913 and 1941 to the study of Japan. But the weight of Japan in Haushofer's oeuvre; the enthusiastic reception of Haushofer in Japanese social, political, and academic circles; and the historical fact of the Tripartite Pact should not overshadow India and China as two stimulating case studies that fuelled Haushofer's spatial imaginations in the interwar period. 50 In fact, Haushofer considered the "Indo-Pacific" case of Japan as an island-state to be simpler than what he called the "hermaphrodite and transitional spaces" (Zwitterund übergangsräume)-that is, between terrestrial and maritime forms of political life-of the "Inner Crescent." By "Inner Crescent," Haushofer received but diverged from the Anglo-American school of "crescent theories." From Halford Mackinder's Inner versus Outer Crescent and Georg Simmel's "spatial sociology" to Nicholas J. Spykman's conceptualization of the "Rimland," these theorists all ask, albeit in different ways, how great powers clash over resource-rich spaces in between. 51 Haushofer, by contrast, raised the question of "sovereign space" from the point of view of the locals. Indeed, the more interesting question is how modern bounds of statehood could-or indeed couldn't-match to the complex geo-oceanographic features formed through long historical processes of the world. In other words, how to balance the "state idea" and the "land concept"? 52 Haushofer believed that the way China eventually resolves this question would apply equally to Central Europe, the Near East, and the Middle East. Along with his Indian liaison Benoy Kumar Sarkar  imperial question. 53 In fact, Haushofer's own ties to key anticolonial activists in Berlin, notably Virendranath Chattopadhyaya and Agnes Smedley, proved also ties to Chinese activism. 54 This falls neatly in line with prevalent interwar narratives about the tightly bound fates of Indian and Chinese republicanisms, as revealed in recent works on the League against Imperialism. 55 whilst international eyes were on the colourful election briberies and the simmering coup d'état  in the old imperial capital, Haushofer averred that the motive power for paradigm changes resided in two figures only: Zhang Zuolin of Manchuria the "Condottieri-Generalgouverneur" and Sun Yat-sen of Sikiang, "the prototype of Anglicized-Reformed Chinese." Above all the dramas in the Central Plains, what captured Haushofer's imaginations were the two coastal maritime habitats by which the two camps were identified: access to the West Pacific via Bohai and Huanghai, and the waterways from the Pearl river delta to the South Seas, the Indian Ocean, and the southwestern Pacific. His prediction of China's political future would turn out to be surprisingly apt in six years' time, when the second generation leaders of these two blocs for the first time unified Republican China, in name if not in effect. Haushofer's acumen, however, was barely received in China. Other than a translation of the Defence Geopolitics: Geographic Basis of Military Science (Wehr-Geopolitik: Geographische Grundlagen einer Wehrkunde, 1932) by Zhou Guangda in 1945, Chinese reception of Haushofer remains scant to the present day. 56 Haushofer's situation of China and India at the heart of the "Indo-Pacific" vision was a product of his time and of his own intellectual encounters. At the time, German ethnography was a mediating ground for geo-oceanographers and comparative philologists. Haushofer humbly deferred all matters Sinic, ancient and modern, to the authority of Sanskritist-turned-sinologist Otto Francke , whom Hellmut Wilhelm dubbed the "Nestor of German sinology." 57 Haushofer compared Francke's "New Formations of East Asia" (1911) and "Great Powers in East Asia" (1923) to Sarkar's "Futurism of Young Asia" , as two sources on "Indo-Pacific" consciousness. 58    was closely associated with Liao Huanxing (廖焕星, 1895-1964). Other Chinese representatives included Liu Puqing (柳溥慶, 1900-1974), and Shao Lizi (邵力子, 1882-1967). Soong Ching-ling (宋慶齡, 1893-1981) also pledged support. It is well known that Smedley (史沫特萊) later connected with Chinese communists. counted on young, and preferably German-trained, Chinese and Indians to unleash a new wave of national self-determination throughout South and East Asia, in order to offset the "Euro-American" colonial clout. 59 An important dimension of Haushofer's interest in the East is what may be called the politics of oriental studies. In 1923, when Haushofer was finalizing his tract, his main source on China, Otto Francke, assumed the chair of sinology at the University of Berlin vacated by the Dutch scholar J. J. M. de Groot. The coronation marked the persistent preeminence of German sinology in Berlin, despite the German loss of the Jiaozhou Bay (Kiautschou Deutsches Schutzgebiet) in Paris. As his citations show, Haushofer took seriously the opinion of Admiral Ballard (1862Ballard ( -1948 that Maximilian von Spee's undeserved defeat at the hands of the Japanese (supported by the British) was symptomatic of the delicate balance of maritime power in the East China Sea. 60 The nexus of Haushofer's interests in German sinology and Germany's position in China is hardly surprising, for oriental studies and colonial politics were always intertwined. 61 And Haushofer rightly appreciated Francke's legacy in the history of German and world sinology. 62 In a way, scholarship in sinology, indology, and historical philology is a token of national influence alternative to colonial power-where, by 1924, Germany had fallen far behind.
The politics of oriental studies also applies to indology, another interest of Haushofer. 63 Indology in the second half of the nineteenth century was rife with quarrels between English and German gurus. The most dramatic episode of politicized Sanskritology was the public bid for the Boden Professorship at Oxford by Max Müller and Monier Williams. On 7 December 1860, amidst marches and manifestoes, nonresident dons and faraway masters, alumni rode on special trains back to Oxford to indulge the proper Englishman with a majority of 220 votes over his Kumar Sarkar, "Futurism of Young Asia," International Journal of Ethics 28/4 (1918), 521-41. The text was delivered as a lecture in 1917 at the then excellent Clark University. 59 "Continental" and "philosophical" German rival. 64 In the wake of the Indian Rebellion of 1857, the Oxford electorate grew profoundly suspicious of Sanskrit studies that did not contribute to colonial governance or missionary work, such as Müller's Vedic scholarship, despite the man's greater command of historical philology. This election has been remembered by many as an example of anachronism and academic prejudice in the Oxford system, if not a symptom of "English injustice" per se. Haushofer was conversant with Müller's legacy in the academic context. Although Sanskrit was never his forte, Haushofer followed Müller's linguistic theorizations of Indo-European, partly based on Vedic evidence, an illustrious line of research which Walther Wüst would infamously spin to the liking of Dietrich Eckart. Although Haushofer refrained from wading into the deep waters of India studies, he enlisted collaborators. In 1928 he cofounded the India Institute of the Deutsche Akademie with the anti-British Bengali intellectual Tarak Nath Das (1884Das ( -1958, who brought from the Kansas Leavenworth prison to Munich, first, grave grievances in the 1917 "Hindu-German Conspiracy Trial"; second, a book recently completed in California entitled Is Japan a Menace to Asia? prefaced by the Chinese politician Tang Shaoyi, with an appendix by Tokutomi Lichirō, the editor-in-chief of Kokumin Shimbun (國民新聞); and third, an ambitious plan to bring Indian students en masse to receive German education. 65 The institute they cofounded to foster Indo-German connection would be renamed "Max Müller Bhavan." 66 Indeed, the program recruited students from the Arya Samaj (आय समाज), an organization which propagated the theory of indigenous Hindu Aryans, allegedly grounded in the Vedic tradition. In this wise, the Vedas became symbolically linked to Indo-German cultural exchange as an oceanopolitical strategy.
Together, the contexts of India and China formed the intellectual seascape of the "Indo-Pacific." Strategically, the political resurrection of South and East Asia, even if not as German allies, would undercut the colonial clout of Western Europe and the United States.
Haushofer realized that, for the purpose of internal "Indo-Pacific" unity against Euro-American encroachment, it was crucial to forestall any attempt to pit the "more Indian" against the "more Pacific" spaces within the maritime belt. This is a serious challenge, and a thorny issue in public debates over the selfdetermination of Southeast Asia, the melting pot of Sinic and Hindu influences since antiquity. Against the popular opinion that these two elements are so different that even European colonialists resorted to different approaches of governance, Haushofer replied that the best "cultural politicians" must adopt a unified approach to govern any "Indo-Pacific" life space with success. Elsewhere sensitive to "Indo-Pacific" heterogeneity, Haushofer here warned against taking too many cultural-geographical peculiarities into account. Allegedly, it was due to the exaggeration of local cultural differences that colonial governors tended to adopt harsher measures than those policies emanating directly from the home country. 73 Doubling down on this point, Haushofer laid into the overuse of cultural geography to demarcate maritime political spaces. Historical contingencies such as the Hindu-Sinic cultural divide in Southeast Asia disturb the calm objectivity of geophysical features: the life cycles of marine species, the procession of oceanic currents, and the direction of sea winds. Here, Haushofer returned to oceanography in his rhetoric, not without reason. Neither a sinologist nor an indologist by training, Haushofer struggled to invent a culturalgeographic theory that would fuse the Sino-Hindu spheres of the "Indo-Pacific." Therefore he resorted to reorganizing political spaces according to the reconceptualization of natural spaces.
Ultimately, Haushofer failed to establish a groundbreaking approach to rethink the relationship between Indian and Chinese traditions in Southeast Asia. But the problem he identified endures to the present day. Twenty-first-century "Indo-Pacific" strategists struggle to answer the same question on the physical unity and cultural disunity of the region, especially in Southeast Asia. So far, "Indo-Pacific" advocates have relied on the perceived similarity in the political institutions of Japan, India, and the United States to lay a common ground for unity. However, this "unity" fails to account for major differences in the forms of culture, society, and governance in the vast spaces between a handful of Washington's avowed allies. In contrast, Haushofer's sense of unity runs deeper than political institutions, to the level of political cultures. There, the answer is not as facile. Regardless of his motives, Haushofer's "Indo-Pacific" took the question of indigenous and colonial politics seriously. And in search of the right way to harmonize Indian and Chinese influences, Haushofer had the foresight to identify Southeast Asia as a key space within space. The political resurrection of Southeast Asia was to become a bulwark against Anglo-American expansions into the "Indo-Pacific." 73 Ibid., 106.
entrenched British presence in this period ended lingering Dutch influence in the region, which had waned steadily throughout the Napoleonic wars, declined precipitously from the Anglo-Dutch Treaty of 1824 to the Pangkor Treaty of 1874, and had almost vanished by the Anglo-Siamese Treaty of 1909. 78 When Haushofer crafted his first formulation of the "Indo-Pacific," however, the English had not yet fully reorganized or militarized this loose string of territories under the Crown. But anticipating such a move-which would not come about until the end of World War II-Haushofer speculated that "the expansion into a first-rank sea base would not fail as a simultaneously reassuring and admonishing symbol of England's overshadowing in Dutch India, and as a soul-strengthening one in Australia." 79 In both Manila and Malacca, Haushofer's avowed aim to breathe political life into the "Indo-Pacific Ocean" is clear from the strategic standpoint of interwar Germany. Given the long history of Euro-American involvement in South, Southeast, and East Asia, as well as the entrenchment of British influence in Australasia, it was both too late and too costly for Germany to operate as a colonial imperial power in the region. Therefore Haushofer turned to "Indo-Pacific" political resurrection, not German recolonization or rearmament. But it is not the case that Haushofer evaded the prospect of reestablishing German military superiority over the oceanic space. Haushofer did realize, for instance, that new technologies might alter the balance of power on the ocean at a faster pace and on a larger scale. A decade before Schmitt ruminated on new submarines and aeroplanes in Land and Sea, Haushofer had already theorized the spatio-political effects of U-boats and seaplane tenders on the future of the "Indo-Pacific." 80 But Haushofer's larger vision was a political one. He hoped that the self-determination of "Indo-Pacific" colonies, rather than another European war, would rebalance the international order.
Haushofer envisioned the future "Indo-Pacific" as a self-conscious political body. Possibly and preferably, the new "Indo-Pacific" would boast German-educated Indian leaders on the front lines of anticolonial resistance, and German-trained Chinese soldiers behind the republic's barricades. 81 A moderate but robust maritime "Indo-Pacific" belt, even if not a formal ally, would amplify if not echo German voices on the continent in better times and come to its aid should fortune turn its tides. But to a Germany unhopeful for recolonization, the self-determination of a decolonized "Indo-Pacific" itself would be a sizeable gain. Indeed, Haushofer took care not to specify any diplomatic alliance with Germany as a prerequisite for the "Indo-Pacific" project. Between the lines, the underlying message was that even without German leadership, the "Indo-Pacific" region should and would cast down the shackles of colonial domination to regain its overdue political consciousness.
A restrained and realistic prescriber of oceano-political medicines, Haushofer was aware that he offered political theory, not diplomatic practice. 82 At a distance from Germany's negotiating tables and foreign-policy meetings, Haushofer entertained global spatial imaginations that were, admittedly, difficult to translate into diplomatic measures. But precisely for this reason, the "Indo-Pacific" vision assumed a global oceanic shape that extended beyond interwar German diplomacy, even though Haushofer's concerns, motivations, and sources were deeply rooted in their contexts. Indeed, the original "Indo-Pacific" concept, in its historical specificity, provokes us to interrogate the alignment and misalignment of the natural environment and political consciousness, the tensions between indigenous culture and colonial governance, as well as the possibility and limitations of reconceptualizing terrestrial and oceanic spaces to rethink international politics. Interestingly and ironically, Haushofer's concern for interwar Germany in international power struggles morphed into a spatial discourse on anticolonial world making. Once we begin to reflect on what the "Indo-Pacific" was as an anticolonial vision, we are able to turn the return of the "Indo-Pacific" into an opportunity to rethink how space could be reconceptualized for anticolonial political thought. More broadly, just as the recovery of a contextualized political concept induces us to rethink political languages of our own time, a critical restoration of Haushofer's "Indo-Pacific" idea challenges us to wrestle with the same questions Haushofer raised, answered, or failed to resolve.

Conclusion
Karl Haushofer's "Indo-Pacific" is a historically grounded and theoretically innovative politico-oceanographic vision. In this first study of Haushofer's "Indo-Pacific" concept in political thought and intellectual history, I have attempted to unravel the inner logic, discursive structure, and political implications of what the "Indo-Pacific" really was. The underlying political oceanography, for all its flaws, makes a serious contribution to the conceptualization of maritime global space. 83 It is a great loss to miss the thick layers of Haushofer's "Indo-Pacific" concept: its case for rethinking the conventions of demarcating global spaces, its regard for indigenous political lives in oceanic spaces, and its call for anticolonial politics to remake the international order. This is so, not least because all such questions are missing in the contemporary discourse on the "Indo-Pacific" as a site for great-power diplomacy. Regrettably, whereas historians have yet to explain antiquarian interest, but a substantive exercise of political reflections on the meanings, limits, and implications of the "Indo-Pacific" as a political language.
In this paper, I have suggested that despite the incredibly diverse building blocksmarine zoology, philology, and ethnography-at the oceanographic foundation of the "Indo-Pacific," Haushofer's case for the "Indo-Pacific" as one bloc, by natural and political necessity, suffers from serious flaws. In order to translate scientific evidence into political theory, Haushofer often skipped intermediary steps, glossed over arguments, and jumped to causal claims. Nevertheless, his rhetoric represents a unique mode of political reasoning in context, where his spatial determinism faced off rival determinisms, most notoriously "raciology" (Rassenkunde), a tradition based on a very different set of "natural-scientific" evidence. 85 At a time when competing ideological trends were taking on the same perennial question in German political thought-the scarcity of strategic access to global "travel spaces"-Haushofer offered a global "belt-and-road" solution.
The "Indo-Pacific" strategy promotes the political resurrection of Asian peoples against "Euro-American" domination. The goal is not only to establish the "the fact of this uniform geopolitical mood … in the Indo-pacific life space," but to explore its political potential. 86 For this larger end, Haushofer built on his connections with not only Japan, but also South, East, and Southeast Asia, as pillars of the "Indo-Pacific" vision. However, repercussions fell flat in India, and reciprocations of Haushofer's interest in Chinese republicanism remained scant. Generations of scholars have noticed that only Japan witnessed a torrent of geo-oceano-political thinking, fueled in part by massive translations of Haushofer's works. 87 Yet the primacy of Japan in Haushofer's reception should not obscure the balanced syncretism and syntheticism in the "Indo-Pacific" vision. Indeed, although "spatial determinism" is a common feature of German geopolitics, Haushofer sees spaces as polymorphic in his political oceanography. At a time when geographers challenge us to rethink the seemingly rock-solid divisions of continents, Haushofer's insistence on "polymorphic unity" provokes us to rethink the global oceanic space. 88 85 To conclude, the first step to regaining a richer "Indo-Pacific" theory is to examine its source, structure, and politics in historical contexts. The "Indo-Pacific" in interwar Germany was an integral oceanic space primed for political consciousness and positioned to undermine colonial domination. Out of Haushofer's historically specific arguments, the "Indo-Pacific" gave rise to global anticolonial visions. Indeed, it is in rethinking what the "Indo-Pacific" concept was that it becomes clear what has been lost, and what is to be regained, in its reincarnated life.