Cold War
High School
Definition
The period of intense rivalry between the United States and the Soviet Union after World War II, lasting until about 1991. Though the two superpowers avoided direct war, they competed through an arms race, proxy conflicts, and ideological struggle.
Worked examples
The Berlin Blockade (1948–49) and Airlift
The USSR blocked West Berlin; the U.S. and allies airlifted supplies instead of starting a shooting war.
The Korean War (1950–53) and Vietnam War (1955–75)
Both were proxy wars where the superpowers backed opposing sides without fighting each other directly.
The Cuban Missile Crisis (1962)
Nuclear-armed missiles in Cuba brought the superpowers to the brink, but diplomacy avoided direct conflict.
Common mistakes
- The Cold War was called 'cold' because it happened in cold regions like Siberia and Alaska. → It was 'cold' because the superpowers never fought each other directly in a 'hot' war. The term refers to the absence of direct combat, not climate or geography.
- The Cold War ended with World War III between the U.S. and Soviet Union. → The Cold War ended peacefully around 1991 when the Soviet Union collapsed. There was no third world war; the rivalry ended through economic collapse and reform, not combat.
Where you'll use it next
You'll revisit the Cold War when studying the space race, nuclear proliferation, decolonization movements, and the origins of modern global politics and alliances like NATO.
See also
Reviewed by Pat Cheng, M.Ed. — StudyPug Curriculum Lead · Last updated June 6, 2026