This article considers a long-term stand-off between two forms of governance. Until the very end of British rule in India and Burma, a cluster of small polities effectively held imperialism at bay. Despite being surrounded, they remained independent and self-governing (in British parlance: ‘unadministered’) up until the eve of the Second World War. They have so far been overlooked in the historiography, and yet these rugged hills provide a unique vantage point from which to consider the limits of empire in the India-Burma borderlands. The martial Zo (‘Shendu’) inhabitants and their guerrilla tactics matched British aggression and bred anxiety in border officials. The British remained largely ignorant about this region. Under the restrictions of an imperial non-intervention policy, they could not enter it. This policy was inspired by the calculation that conquering these inaccessible mountains might cost more than it would yield in head tax and forest products. The result was a geopolitical rarity: an obstinate island of indigenous governance, cultural continuity, and micro-warfare enclosed by imperial territories.
