In 1953 the United States, with the assistance of England, ousted the Prime Minister Mohammed Mossadegh and installed the Shah as ruler of Iran. This would have great significance in the future of the middle east and other scholars argue it is the root of modern terror. In my research I wanted to know why the United States agreed to help England to oust the Prime Minister. The United States had previously declined, asserting that a agreement should be made between the two countries to settle a oil dispute. In the end it was either the influence of resources, namely oil, that changed the United States original decision. Or it was the threat of communism in Iran. This was during the height of Cold War Tensions and for the United States that threat would be addressed more broadly worldwide after Eisenhower was elected President.