The Truman Doctrine was President Harry Truman’s policy. He stated that the US would support Greece and Turkey with economic and military aid to prevent their falling into the Soviet sphere. The reason why Truman did this was to end the threat of communist. Truman wanted to put the policy of containment in effect. Containment was to contain communism in Europe and make sure it doesn’t spread. Without this event/person doing what they did the world might of different, it would be run by communism. If Truman didn’t believe in a free world than he wouldn’t have suggested the Truman Doctrine which would spread the idea of communism. I believe that without this document, The Truman Doctrine, that Europe would be different in terms of government regulations.