section_path: Post-war era/1947–1950: Cold War policy
section_name: 1947–1950: Cold War policy
paragraph_text: 1947–1950: Cold War policy
  
  In the aftermath of the Second World War, the British Empire declined, leaving the U.S. and USSR as the dominant world powers. Tensions among these former Allies grew, resulting in the Cold War. Although Stalin publicly described the British and U.S. governments as aggressive, he thought it unlikely that a war with them would be imminent, believing that several decades of peace was likely. He nevertheless secretly intensified Soviet research into nuclear weaponry, intent on creating an atom bomb. Still, Stalin foresaw the undesirability of a nuclear conflict, saying in 1949 that "atomic weapons can hardly be used without spelling the end of the world." He personally took a keen interest in the development of the weapon. In August 1949, the bomb was successfully tested in the deserts outside Semipalatinsk in Kazakhstan. Stalin also initiated a new military build-up; the Soviet army was expanded from 2.9 million soldiers, as it stood in 1949, to 5.8 million by 1953.
  
  The U.S. began pushing its interests on every continent, acquiring air force bases in Africa and Asia and ensuring pro-U.S. regimes took power across Latin America. It launched the Marshall Plan in June 1947, with which it sought to undermine Soviet hegemony throughout Eastern Europe. The U.S. also offered financial assistance to countries as part of the Marshall Plan on the condition that they opened their markets to trade, aware that the Soviets would never agree. The Allies demanded that Stalin withdraw the Red Army from northern Iran. He initially refused, leading to an international crisis in 1946, but one year later Stalin finally relented and moved the Soviet troops out. Stalin also tried to maximise Soviet influence on the world stage, unsuccessfully pushing for Libya—recently liberated from Italian occupation—to become a Soviet protectorate. He sent Molotov as his representative to San Francisco to take part in negotiations to form the United Nations, insisting that the Soviets have a place on the Security Council. In April 1949, the Western powers established the North Atlantic Treaty Organization (NATO), an international military alliance of capitalist countries. Within Western countries, Stalin was increasingly portrayed as the "most evil dictator alive" and compared to Hitler. According to his daughter, Svetlana Alliluyeva she "remembered her father saying after: Together with the Germans we would have been invincible"
  
  In 1948, Stalin edited and rewrote sections of Falsifiers of History, published as a series of Pravda articles in February 1948 and then in book form. Written in response to public revelations of the 1939 Soviet alliance with Germany, it focused on blaming the Western powers for the war. He also erroneously claimed that the initial German advance in the early part of the war, during Operation Barbarossa, was not a result of Soviet military weakness, but rather a deliberate Soviet strategic retreat. In 1949, celebrations took place to mark Stalin's seventieth birthday (although he was 71 at the time,) at which Stalin attended an event in the Bolshoi Theatre alongside Marxist–Leninist leaders from across Europe and Asia.