Dictatorship Across Borders: Brazil, Chile, and the South American Cold War (UNC Press, 2025) offers a groundbreaking perspective on the 1973 Chilean coup, highlighting Brazil’s pivotal role in shaping the political landscape of South America during the Cold War. Shifting the focus from the United States to interregional dynamics, Mila Burns argues that Brazil was instrumental in the overthrow of Salvador Allende and the establishment of Augusto Pinochet’s dictatorship. Drawing on original documents, interviews, and newly accessible archives, particularly from the Brazilian Truth Commission, Burns reveals Brazil’s covert involvement in the coup, providing weapons, intelligence, and even torturers to anti-Allende forces. She also explores the resistance networks formed by Brazilian exiles in Chile. Burns’s impeccable research—combining history, anthropology, and political science—makes Dictatorship across Borders a vital addition to Cold War studies, reshaping how we understand power and resistance in South America.