The United States implementation of the Truman Doctrine can be considered a part of the US policy of containment. The foreign policy of containment revolves around the idea of stopping the spread of communism all over the world. This policy was created after World War II, as the United States and Soviet Union emerged as global superpowers.
The Truman Doctrine can be seen as party of containment because the US is trying to stop the spread of communism from entering Turkey and Greece. These two countries are very close to the Soviet Union and their satellite nations. To ensure that these nations don't fall to communism, President Truman pledges $400 million in financial assistance. The goal in giving this money is to help stabilize each countries economy and to help them recover from World War II. This would also allow the US to influence these governments. If the US helps these countries, then they won't seek help from the Soviet Union. This means that communism won't spread.
