This article examines the imperial Russian army's attempt to formulate a comprehensive nationalities policy for its officer corps after 1905. The army sought to establish service quotas for each nationality according to its percentage of the empire's population. The professed goal of this policy was the preservation of the numerical, and thus cultural, predominance of Orthodox, ethnic Russian officers. Yet this attempt to fashion an officer corps both “imperial” and “Russian” exposed competing paradigms of service, loyalty, and identity among tsarist officers, raising broader questions about the relationship between army, state, and empire. Thus concerns of nationality and nationalism affected the officer corps more deeply than has been assumed. Gregory Vitarbo's work provides new insights into the intersection of military reform, nationality policy, and imperial ideology in the late Russian empire, while further illustrating suggestive linkages with contemporary pan-European trends concerning military practices, nationality politics, and cultural ferment.