 Yugoslavia's international relations matured into the Non-Aligned Movement (1961) of countries without political allegiance to any power bloc.At the death of Stalin in 1953, Nikita Khrushchev became leader of the Soviet Union and of the Communist Party of the Soviet Union and then consolidated an anti-Stalinist government.In a secret meeting at the 20th Congress of the Communist Party of the Soviet Union, Khrushchev denounced Stalin and Stalinism in the speech "On the Cult of Personality and Its Consequences" (25 February 1956) in which he specified and condemned Stalin's dictatorial excesses and abuses of power such as the Great purge (1936–1938) and the cult of personality.