Under the Truman Doctrine, the United States pledged to

  1. refrain from polarizing the world into pro-Soviet and pro-American camps.

  2. maintain prosperity in America after World War II.

  3. give very limited assistance to nations fighting communism.

  4. support those who were resisting subjugation by communists.

  5. " work to liberate the ""captive nations"" of Eastern Europe."