The author takes a regional perspective to focus on postwar diplomacy in Iran, Turkey, and Greece and efforts in these countries to maintain their independence from the Great Powers. Drawing on a wide variety of secondary sources, government documents, private papers, unpublished memoirs, and extensive interviews with key figures, he shows how the traditional struggle for power along the Northern Tier was a major factor in the origins and development of the Cold War between the U.S. and the U.S.S.R.