The agreement provided for large sales of Russian grain and oil to Germany, while Germany would share its military technology with the Soviet Union. The ensuing Molotov–Ribbentrop Pact astonished the world and signaled the war would start very soon. French historian François Furet says, "The pact signed in Moscow by Ribbentrop and Molotov on 23 August 1939 inaugurated the alliance between the USSR and Nazi Germany. It was presented as an alliance and not just a nonaggression pact." Other historians dispute the characterization of this treaty as an "alliance," because Hitler secretly intended to invade the USSR in the future. World War II Stalin controlled the foreign policy of the Soviet Union, with Vyacheslav Molotov as the foreign minister. Their policy was neutrality until August 1939, followed by friendly relations with Germany in order to carve up Eastern Europe. The USSR helped supply oil and munitions to Germany as its armies rolled across Western Europe in May–June 1940. Despite repeated warnings, Stalin refused to believe that Hitler was planning an all-out war on the USSR. Stalin was stunned and temporarily helpless when Hitler invaded in June 1941. Stalin quickly came to terms with Britain and the United States, cemented through a series of summit meetings. The U.S. and Britain supplied war materials in large quantity through Lend Lease. There was some coordination of military action, especially in summer 1944. At war's end the central issue was whether Stalin would allow free elections in eastern Europe. Cold War (1947–1991) Europe The Soviet Union emerged from World War II devastated in human and economic terms, but much enlarged in area. Militarily it was one of the two major world powers, a position maintained for four decades through its hegemony in Eastern Europe, military strength, involvement in many countries through local Communist parties, and scientific research especially into space technology and weaponry. The Union's effort to extend its influence or control over many states and peoples resulted in the formation of a world socialist system of states. Established in 1949 as an economic bloc of communist countries led by Moscow, the Council for Mutual Economic Assistance (COMECON) served as a framework for cooperation among the planned economies of the Soviet Union, its allies in Eastern Europe and, later, Soviet allies in the Third World. The military counterpart to the Comecon was the Warsaw Pact. The Soviet Union concentrated on its own recovery. It