The Communist Party opposed the United States involvement in the early stages of World War II (until June 22, 1941, the date of the German invasion of the Soviet Union), the Korean War, the Vietnam War, the invasion of Grenada and American support for anti-Communist military dictatorships and movements in Central America. Meanwhile, some in the peace movement and the New Left rejected the Communist Party for what it saw as the party's bureaucratic rigidity and for its close association with the Soviet Union.