The Hungarian Revolution of 1956 or Hungarian Uprising of 1956 ( or ) was a spontaneous nationwide revolt. It was against the government of the Hungarian People's Republic and its Soviet-imposed policies. It lasted from 23 October until 10 November 1956. It was the first major threat to Soviet control since the USSR's forces drove out the Nazis at the end of World War II and took over Eastern Europe. Despite the failure of the uprising, it was highly influential. It played a role in the fall of the Soviet Union decades later.