make an argument about why the United States believed it had a duty to combat the U.S.S.R. during the Cold War.

The conflict between the United States and the Soviet Union during the Cold War was primarily a conflict of ideas, though the ideological conflict between these two superpowers did manifest violence on the local level. The declassified NSC-68 document articulates the rationale by which the United States justified its actions during the Cold War, from stationing tanks and troops in Europe to opposing socialist revolutions in Latin America and Africa to waging a long, costly, and divisive war in Southeast Asia. Using both NSC-68 and a speech by President Kennedy to West Berlin, make an argument about why the United States believed it had a duty to combat the U.S.S.R. during the Cold War.