How far has the USAs role in world affairs developed since 1929?

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How far has the USA’s role in world affairs developed since 1929?

America took to Isolationism after WWI had ended in 1918 where USA wanted to stay out of world affairs, which was why they signed Neutrality Acts of 1935, 1936 and 1937, stating them as neutral if any war started. They would avoid disputes that may lead to a war. They chose isolationism for the fear of another war, and to rebuild their economy after WWI and the Wall Street Crash in 1929.

America switched from isolationism to interventionism, on 8th December 1941, three days after the attack on Pearl Harbour. This lasted till 1945, which was the end of WWII, the same year USA used the Atom bomb on Hiroshima and Nagasaki. America changed from isolationism as they had intervened in a war, and not avoiding disputes related to war. The main reason was that USA wanted to eliminate Nazi forces, and having a reason to retaliate again Japan for ruining American business with Manchuria.

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From 1946 – 1971 America tried to contain communist forces where USA intervened in the Korean War (1950 – 1953) and the Vietnam War (1964-1965). In both wars, USA tried to stop spread of communism from the North to South. USA’s view changed from trying to defeat communism, to containing it spread to other countries.

From 1972 – 1979 America’s foreign policy was détente which was a relaxed approach to world affairs, which started at the signing of the SALT I agreement, by USA and the USSR; which limited how many missiles each country could hold, thus ...

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