WORLD HISTORY

Detailed explanation-1: -Following the defeat of the Axis powers, an ideological and political rivalry between the United States and the USSR gave way to the start of the Cold War.

Detailed explanation-2: -Although relations between the Soviet Union and the United States had been strained in the years before World War II, the U.S.-Soviet alliance of 1941–1945 was marked by a great degree of cooperation and was essential to securing the defeat of Nazi Germany.

Detailed explanation-3: -Historians have identified several causes that led to the outbreak of the Cold War, including: tensions between the two nations at the end of World War II, the ideological conflict between both the United States and the Soviet Union, the emergence of nuclear weapons, and the fear of communism in the United States.

Detailed explanation-4: -U.S. and Soviet troops never fought each other directly during those years. But numerous Cold War-related conflicts raged across the globe from the 1940s to the 1980s. The vast bulk of those conflicts occurred in the developing countries of Asia, Africa and the Middle East – the so-called Third World or Global South.