When the Europe became stable with a cold peace, the two powers transferred their competition to the third world of very important geopolitical significance.Due to the past colonial policy implemented by the Western powers, the U.S.suffered a rather poor image in the third world countries, and the Soviet peace propaganda, advocation of nationalism as well as the antiAmerica and antiimperialism propaganda made the U.S.image cognition even worse.In order to contain the socalled spread of Soviet Communism in third world countries and win the support of more third world countries, the U.S., with the forerunner of military and economic aid, started a propaganda warfare in the third world countries to reshape its good image.The U.S.propaganda of reshaping its good image achieved some effects, but it led to the dissatisfaction of third world countries and the antiAmerican waves kept coming here and there.

the Cold War; the propaganda warfare; the United States (U.S.) National Security Council; the third world country； ideology