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In August of 1948 the U.S. began airlifting supplies to Berlin due to being cut off from supplies and goods. This method was "Forging Alliances".

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The war increased in 1950, the U.S. supported South Korea. In late June North Korea invaded South Korea. The U.S. sent troops to support South Korea. This method was "Military aid".

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.The U.S. was in the process of developing the bomb in 1952. The bomb was made 450x more powerful, yielded 10.4 megatons. Method used is "Building up defenses".

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In 1961 in response to the Cuban Revolution, John F. Kennedy supported the invasion of Cuba with Anti-Castro supporters. The invasion backfired and led to the U.S. paying 53 million in compensation to Cuba. The method used was "Military aid" and I'd say Financial aid even though it was not planned.

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October 1962, was a 13 day political and military standoff between the U.S. and Soviet Union over nuclear missiles in Cuba. Method used Negotiations.

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500,000 U.S. troops deployed by 1969, sparking a lot of anti-war protests. North and South Vietnam were both involved.

Method used was Proxy warfare.

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Sep 11, 1973 General Augusto Pinochet led a military coup that overthrew Allende. Pinochet then created a brutal military dictatorship. Anti-communist stance stood until 1990.

Method used Clandestine Operations.

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This was a policy pursed by the U.S. It aimed at easing the tensions between the U.S. and communist rivals, Soviet Union and China. (Dente means relaxation in French). Salt I is an agreement on strategic offensive arms, it froze ICBMs and SLBMs for five years.

Method used was negotiations.

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Leonid Brezhnev ordered an invasion to stabilize. Included the killing of Karmal who was president. They could not control the entire country due to lack of preparation against guerrilla tactics.

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President Ronald Reagan's defense buildup in the 1980's was a major escalation. The strategy aimed at pressuring the Soviet Union economically and militarily. Reassert U.S. dominance (Military) after percieved weakness in 1970's.

Method used, building up defenses.