The U.S and allies flew in supplies to West Berlin after the Sovoet Union blocked all ground access, demonstrating resistance to Soviet pressure

A conflict between communist North Korea ( backed by China and USSR) and captalist South Korea (supported by UN) ending in stalement at the 38th parrallel

The U.S. tested a powerful thermonuclear bomb, escalating the arms race during the cold war - 500x more powerful then the bomb dropped in Nagasaki

A failed invasion of Cuba by U.S. baked Cuban exiles aimed at overthrowing Fidel Castro´s communist government

A 13-day standoff between the U.S. and USSr over Soviet nuclear missiles in Cuba which ended peacefully but brought the world close to nuclear war

American military involvment escalated in Vietnam to prevent the spread of communism in Southeast Asia

U.S. backed military coup overthrew Chileś socialist president Salvador Allende and installed dictator Augusto Pinochet.

A policy to ease Cold War tensions - SALT I was a treaty that limited nuclear weapons between the U.S. and USSR

USSR invaded Afghanistan to support a communist government which led to a U.S. backed resistance and heightened Cold War tensions.

President Reagan increased military spending and launched the Strategic Defense Initiative, pressuring the Soviet economy and intensifying the arms race.