rival International Confederation of Free Trade Unions. The labor movement in Europe became so polarized between the communists unions and social democratic and Christian labor unions, whereas front operations could no longer hide the sponsorship and they became less important. Soviet Union after World War II The devastation of the war resulted in a massive recovery program involving the rebuilding of industrial plants, housing and transportation as well as the demobilization and migration of millions of soldiers and civilians. In the midst of this turmoil during the winter of 1946–1947, the Soviet Union experienced the worst natural famine in the 20th century. There was no serious opposition to Stalin as the NKVD secret police continued to send possible suspects to the gulag. Relations with the United States and Britain went from friendly to hostile, as they denounced Stalin's political controls over eastern Europe and his blockade of Berlin. By 1947, the Cold War had begun. Stalin himself believed that capitalism was a hollow shell and would crumble under increased non-military pressure exerted through proxies in countries like Italy. However, he greatly underestimated the economic strength of the West and instead of triumph saw the West build up alliances that were designed to permanently stop or contain Soviet expansion. In early 1950, Stalin gave the go-ahead for North Korea's invasion of South Korea, expecting a short war. He was stunned when the Americans entered and defeated the North Koreans, putting them almost on the Soviet border. Stalin supported China's entry into the Korean War which drove the Americans back to the prewar boundaries, but which escalated tensions. The United States decided to mobilize its economy for a long contest with the Soviets, built the hydrogen bomb and strengthened the NATO alliance that covered Western Europe. According to Gorlizki and Khlevniuk (2004), Stalin's consistent and overriding goal after 1945 was to consolidate the nation's superpower status and in the face of his growing physical decrepitude to maintain his own hold on total power. Stalin created a leadership system that reflected historic czarist styles of paternalism and repression, yet was also quite modern. At the top, personal loyalty to Stalin counted for everything. However, Stalin also created powerful committees, elevated younger specialists and began major institutional innovations. In the teeth of persecution, Stalin's deputies cultivated informal norms and mutual understandings which provided the foundations for collective rule after his death. Eastern Europe The