This book explores ways in which foreign intervention and external rivalries can affect the institutionalization of governance in weak states. When sufficiently competitive, foreign rivalries in a weak state can actually foster the political centralization, territoriality, and autonomy associated with state sovereignty. This counterintuitive finding comes from studying the collective effects of foreign contestation over a weak state as informed by changes in the expected opportunity cost of intervention for outside actors. When interveners associate high opportunity costs with intervention,...