Origins of the Cold War - 15A07 By facebooker_1109339289085180 Nov 28, 1943 Tehran Conference Period: Nov 28, 1943 to Dec 1, 1945 Co-Operation Oct 1, 1944 Percentages Agreement Jan 1, 1945 US $6 billion loan to USSR Feb 4, 1945 Yalta Agreement Jul 1, 1945 Potsdam Conference Aug 1, 1945 US $1 billion loan to USSR Dec 1, 1945 Soviet refusal to join IMF Period: Dec 1, 1945 to Jul 1, 1946 Get tough policy Jan 1, 1946 Bulgaria & Romania annexed Feb 1, 1946 Kennen's Long Telegram Mar 1, 1946 Churchill's speech May 1, 1946 General Clay stops reparations to USSR Jun 1, 1946 Negotiationsitions over loans ended Jul 1, 1946 Clifford-Elsey Report Period: Jul 1, 1946 to May 1, 1955 US Policy of containment Apr 1, 1947 Truman Doctrine Jul 1, 1947 Marshall Plan Feb 1, 1948 Czechnosolviakian Coup Mar 1, 1948 Brussels Pact Jun 1, 1948 Establishment of Deutsche Mark Jun 1, 1948 Berlin Blockade Apr 1, 1949 Formation of NATO Oct 1, 1954 West German entry to NATO May 1, 1955 Formation of Warsaw Pact