The Cold War between the Soviet Union and the United States was manifested in three specific aspects

The Yalta system (bipolar pattern) was formed after World War II

Cold War policy: After the end of World War II, the United States ranked first in economic and military strength in the world , its ambition to dominate the world is growing day by day, but the United States has to face up to socialist countries such as the Soviet Union. The United States led Western capitalist countries in adopting all means of hostility except armed attack against socialist countries such as the Soviet Union in order to "contain" communism. This policy was called the Cold War policy. Specific manifestations: the political implementation of the Truman Doctrine, the economic implementation of the Marshall Plan, and the military implementation of the North Atlantic Treaty Organization.

Truman Doctrine: In March 1947, Truman delivered a speech in Congress. The program and policies he proposed to "contain communism", interfere in other countries' internal affairs, and tighten control of other countries were later called the "Truman Doctrine." Its introduction marked the official breakdown of the wartime alliance between the United States and the Soviet Union and the beginning of the Cold War between the United States and the Soviet Union.

The formation of the Cold War situation between the United States and the Soviet Union: Starting from the Truman Doctrine, the United States implemented the "Marshall Plan" (i.e., the "European Recovery Plan") to assist Western Europe in the economic aspect, and established the North Atlantic Treaty in the military aspect organize. The Soviet Union took tit-for-tat measures and established the Warsaw Pact. At this point, the Cold War situation between the United States and the Soviet Union finally took shape. The United States and the Soviet Union began a half-century-long confrontation.

The Soviet Union and the United States competed for hegemony: Since Khrushchev became the leader of the Soviet Union in the 1950s, the United States and the Soviet Union launched a struggle for hegemony that lasted for more than thirty years. The disintegration of the Soviet Union in 1991 marked the end of half a century of bipolarity between the United States and the Soviet Union.

Impact: Negative impact - the United States and the Soviet Union are fighting for peace, and the world situation has been unstable for a long time. Positive effect - the two major groups balance their power and prevent the outbreak of a new war.