Towards the end of the Cold War, the last great struggle between the United States and the Soviet Union marked the end of detente, and escalated into the most dangerous phase of the conflict since the Cuban Missile Crisis. Aaron Donaghy examines the complex history of America's largest peacetime military buildup, which was in turn challenged by the largest peacetime peace movement. Focusing on the critical period between 1977 and 1985, Donaghy shows how domestic politics shaped dramatic foreign policy reversals by Presidents Jimmy Carter and Ronald Reagan. He explains why the Cold War intensified so quickly and how - contrary to all expectations - US-Soviet relations were repaired. Drawing on recently declassified archival material, The Second Cold War traces how each administration evolved in response to crises and events at home and abroad. This compelling and controversial account challenges the accepted notion of how the end of the Cold War began.