How far has USA’s role in world affairs developed since 1929?
USA has been a superpower nation and especially in the 1900s, their decisions have affected the world greatly and bought about change. However USA’s attitudes to world affairs have not been constant throughout.
The USA’s foreign policy during the 1920s was called isolationism. The USA did not want to get involved in foreign affairs and foreign wars, especially since WW1 where the people feared another “European death march” so they rejected joining the League of Nations despite the fact that USA was the country who put forward the idea at the Treaty of Versailles. However the USA did try to promote peace where possible such as when they helped Germany with their reparations problems, was a participant in the Washington Naval Conference where the 5 major powers agreed on specific rations of ships for their navies and signed the Kellogg-Briand pact of renouncing war as a method of settling international disputes. Although USA had not directly intervened in world affairs they had helped economically and politically to retain the world peace (to keep to their isolationist policy and not being pressed into intervention).
However when war broke out in Europe USA’s isolationist policy was slackened, and treaties such as Lend lease, Atlantic charter showed America’s support for Britain and her allies which shows the difference in attitude compared to the early 1920s. Also USA’s deteriorating relationships with Japan had gone to the limit, even though USA had tried economic sanctions and UN warnings against them. When Japan had bombed Pearl Harbour and USA changed foreign policy from isolationism to interventionism and declared war on Japan, and Germany and Italy declared war on the USA. After German defeat in Europe USA and USSR both turned to Japan who was still at war with them. Even though Japan had lost nearly all colonies they still refused to surrender which led them to drop an atomic bomb, rather than...