Adversary and Ally offers a penetrating analysis of how Chinas rise has reshaped the frontier politics of South Asia. Drawing on rich archival research and declassified sources, this book provides an essential framework for understanding the security consequences of Chinas regional engagement for policymakers and scholars alike. -- Hassan Abbas, author of The Return of the Taliban: Afghanistan After the Americans Left Akins delivers a stark, urgent analysis of the political fault lines of South Asia and the rising dangers of great-power rivalry. Essential reading for global leaders and serious commentators. -- Akbar Ahmed, former Pakistani Ambassador and Ibn Khaldun Chair of Islamic Studies, American University Harrison Akins has produced an empirically masterful and analytically sophisticated study of how China's influence has shaped state-periphery relations in South Asia, examining northeastern India and Pakistan's Balochistan as illuminating parallel cases. This is a vital and timely read on China, India, and Pakistan's foreign relations and state formation processes. -- Asfandyar Mir, The Stimson Center Deftly integrating international influences with the dilemmas that South Asian states have with their frontiers and synthesizing a wealth of historical material, Adversary and Ally reveals how China has had long-term engagement with South Asian countries, in ways that not only shaped external relations but shaped state-society relations. -- Adnan A. Naseemullah, coauthor of Righteous Demagogues: Populist Politics in South Asia and Beyond