The United States and Soviet Union had very different goals after World War II.
Soviet Union- The Soviet Union wanted to continue to spread their power and influence. They would do this by creating alliances with other communist nations in order to further the cause of communism. The Soviet Union's desire to develop political alliances and support lead to the creation of the Warsaw Pact.
United States- The US wanted to stop the spread of communism on a global basis. This was known as the policy of containment. The US gave large amounts of money to countries that were in jeopardy of falling under the control of the Soviet Union. This includes nations like Greece and Turkey.