The origins of the Cold War come from various directions, but primarily from the tensions that arose between the Soviet Union and the United States. Although the USSR and the United States were considered allies during World War II, this was the only commonality between the two countries. These differences, particularly regarding the political structure adopted by their countries, became the basis of the Cold War. Several months before the end of World War II, when it seemed certain that German forces were on the verge of capitulation, several world leaders met at what is known as the Yalta Conference to discuss relevant restructuring issues that may lie ahead. The three leaders present, President Franklin D. Roosevelt, Winston Churchill of England, and Joseph Stalin of the Soviet Union, each agreed to meet in hopes of reaching an agreement on how things should be run after the war. Despite several agreements reached at the Yalta Conference, Stalin quickly made changes on several major points, including establishing a communist government in Poland, despite promising a democratic structure. As much as Stalin's broken promises caused a divide between nations, the Soviet Union became wary of the United States after the atomic bombings of Hiroshima and Nagasaki, several months after the Yalta meeting. Stalin's establishment of what would be known as the Eastern Bloc furthered the development of the Cold War. The Eastern Bloc was a handful of countries associated with the USSR as a Soviet Socialist Republic with the intention of exerting communist control over the country; politics, media and the economy were entirely controlled by the state.Fr...... middle of paper ......es. Dulles was responsible for the development of a number of groups specially formed for this specific purpose and united a number of countries under the overall concept of containment and anti-communism. Specifically, Dulles is recognized for his assistance in the development of the Southeast Asia Treaty Organization, a treaty uniting a number of nations working together to defend the Pacific region against the threat of communism. His involvement as Secretary of State had a number of positive outcomes, all with the primary goal of maintaining communism within Soviet borders. Unfortunately, John Foster Dulles contracted colon cancer which led to his death in 1959. His involvement in American politics, particularly during that turbulent period of the Cold War, led to Washington DC International Airport carrying his name in his memory..