 One of his first major policy shifts towards a more aggressive position against communism occurred in March 1953, when Dulles supported Eisenhower's decision to direct the Central Intelligence Agency (CIA), then headed by his brother Allen Dulles, to draft plans to overthrow the Prime Minister Mohammed Mossadegh of Iran.This led directly to the coup d'état via Operation Ajax in support of Mohammad Reza Pahlavi, who became the Shah of Iran.In 1954 during at the height of the Battle of Dien Bien Phu, Dulles hoped that American forces could attempt to help the beleaguered French army.