The Origins of the Cold War By em2019 1917 Russian Revolution Period: 1918 to 1920 Russian Civil War 1939 Hitler and Stalin partitioned Poland 1941 German invasion of USSR Period: 1943 to 1943 Tehran Conference Mar 9, 1943 Italian Armistice 1944 Red Army entered central Poland 1944 Formation of coalition government in Romania 1944 British suppressed Communist uprising in Greece Jun 6, 1944 Allied forces invaded France Sep 9, 1944 Communist Coup in Bulgaria Sep 10, 1944 Anglo-Soviet 'percentages agreement' 1945 Yalta Conference Aug 5, 1945 Unconditional German surrender