Chapter 28 Cold War and a New Western World, 1945-1970 The Development of the Cold War The Confrontation of the Superpowers Rivalry between U.S. and USSR stemmed from their different historical perspectives and irreconcilable political ambitions Eastern Europe was first area of disagreement pro-Soviet governments installed in Poland, Romania, Bulgaria, Hungary 1946: Greek Civil War Communist PLA and non-Communist forces fight over control of Greece Truman Doctrine: economic and military aid for Greece Truman Doctrine: U.S. provide money to countries ?threatened? by Communist ?expansion? June 1947: Marshall Plan (European Recovery Program) $13 billion for economic recovery of war-torn Europe Soviets considered Marshall Plan capitalist imperialism