The conflict in ideologies between capitalism and communism resulted in one of the greatest conflicts of the twentieth century. The belief that freedom and democracy would die under communist rule caused the United States to start a conflict that would last for decades. The decisions made by the United States in W.W.II caused tensions to rise between the U. S. and the Soviet Union. Fear of Communism in capitalist nations, caused the United states government to use propaganda to raise Cold War anxieties. Furthermore, the American media influenced the attitudes of Americans, making a hatred of communism spread though the nation. Thus, the United States caused the conflict known as the Cold War, through its political policy and propaganda. The political relations going on in Europe during and directly after World War II had an enormous effect on laying the foundation for the Cold War. War time conferences such as Yalta and Terhran harshened the relationship between the communists and the capitalists. At the end of W.W.II American policy towards the Soviets changed drastically. The change in president in 1945 caused relations with Russia to worsen. Furthermore, other political contributions to the Cold War entailed the Truman Doctrine and the Marshall Plan. The division of Europe between the west and east drew physical borders which outlined that the war of misinformation that had began. Also treaties of the post war world further separated the two super powers of the world for the decades to follow. The waging of hot wars through other countries also strengthened Cold War hatred.(1) Thefirst of the cold war tensions arose out of W.W.II conferences between the Soviet Union, America and, Great Britain. Tehran, thefirst major conference which lead America to start the Cold War, included all three of these nations. At this conference the reshaping of post-war Europe was discussed (2) Later in February of 1945, the big three met again at Y…