How did Soviet actions after World War 2 affect American foreign policy?

Soviet policy during World War 2?  Soviet actions at the end of world war 2?  How did ww2 affect american foreign policy?  How did the soviet foreign policy change after 1945?  What was the soviet actions at the end of the world war 2?  How did the soviet actions affect the american foreign policy?  How did the soviet actions affect the american foreighn policy?  How did Soviet actions after WWII affect American foreign policy?  What other actions indicate what US policy was during this period?  How did soviet foreign policy affect relations with the Western Powers?  How did the breakup of the soviet union affect american foreign policy?  What were the effects on American European and Soviet foreign policies?  How did the soviet threat affect american foreign and military policies?  How did the experiences in World War 2 affect the US and Soviet post-war policy?  How was american foreign policy affected by soviet-american relationship in ww2?  How has the American foreign policy changed since the demise of the Soviet Union?  What was the US foreign policy which was designed to stop the Soviet Union from expandinig beyond their existing sphere of influence?  What four factors in Soviet policy contributed to a state of tension in the world prior to the late 1980's?  Explain how the Soviet threat affected American foreign and military policy during the Eisenhower years?  How was the German invasin of Russia a turning point in american foreign policy during World War 2?