'While it is well known that 'all politics is local,' Yin Qingfei's research demonstrates that, even for a transnational frontier, all localities are political. Her exhaustive research into Chinese and Vietnamese archives presents a vivid picture of the dynamic mix of international, national, and local elements in reshaping of border realities.' Brantly Womack, author of China and Vietnam: the Politics of Asymmetry 'Tracing the rise and fall of the Sino-Vietnamese alliance in their borderlands, State Building deftly analyzes the dynamics of state centralization and localization at a critical juncture in the Cold War. Yin's mining of Chinese and Vietnamese archives yields a bracingly original study of a fractious relationship during the Indochina Wars. A must read.' Christian C. Lentz, author of Contested Territory: in Biên Ph and the Making of Northwest Vietnam 'Yin skilfully and successfully brings together macro-level theories about nation, decolonization, and territorialization with micro-level narratives about the social fabrics and ethnic mosaic in a dynamic borderland. By tracing the cross-border lives of smugglers and soldiers, brides and buffalos, by delineating the intertwined contours of state-making, border-making, alliance-making and alliance-breaking between two Communist countries, the book inspires us to rethink the concept of the Cold War as well as classic theories about state-building by Charles Tilly and James Scott in the Asian context. Rich and bold, the book is a must read for anyone interested in China, Vietnam, the borders in-between and beyond.' Taomo Zhou, author of Migration in the Time of Revolution: China, Indonesia and the Cold War