The US became increasingly involved in the Vietnam War mainly due to their enmity with Russia due to the fact that they were communists, and the way the USSR spread by claiming countries that could become democratic and become trading partners of the United States. Although Russia, Great Britain, and the United States were all allies in World War I, they disagreed about many things, particularly how to punish Germany and how to manage Europe. THE USSR AND THE USA. During the period 1940-1970, the USSR and the USA were the world's leading superpowers. After World War II, it was US money that helped rebuild almost all of Western Europe, putting nearly half a dozen countries into debt. They opened up trade and helped Europe's devastated economy get back on its feet. They did this by creating the "Marshall Plan" on June 5, 1947. The goal of the plan was to rebuild Western Europe and at the same time stop the spread of communism in them: Americans fiercely believed in the domino theory and believed that communism would conquer all of Europe if they did not intervene. They also created other policies such as the Truman Doctrine of March 12, 1947 (which is a set of principles that state that the United States as the "leading country" of the world will help other democratic governments around the world) and NATO, April 4, 1949 The Russians, also greatly affected by the war, did not decide to retreat within their borders without achieving anything: they were not allowed to attend the Treaty of Versailles or take part in defining the terms and conditions. reparations that Germany would have to pay, thus obtaining no reward from participation in the war. Embittered by this prospect, Stalin decided to respond with his own set of policies, such as ComEcom, ComInfor...... half of document ......h The Americans used planes and helicopters to deploy heavy, sustained bombing raids on Vietnam. More bombs were dropped during this operation than in the entire Second World War: 864,000 tons in total. CONCLUSION. In conclusion, I think that the United States became increasingly involved in the Vietnam War because of the policies it made as a promise to fight communism, and because it severely underestimated the ability of the Vietcong to fight back using guerrilla warfare. They refused to retreat from the war for fear of losing face in front of the world, but this pride factor caused them huge losses during the war. In the end, with both sides suffering heavy casualties, the United States was still seen as a maimer in the war, with progress showing how much their intervention had cost, and Vietnam was still completely conquered by communism: they had achieved nothing and lost a lot..