The Vietnam War was the prolonged struggle between nationalist forces attempting to unify the country of Vietnam under a communist government and the United States (with the aid of the South Vietnamese) attempting to prevent the spread of communism. Engaged in a war that many viewed as having no way to win, U.S. leaders lost the American public's support for the war.
rest at: http://history1900s.about.com/od/vietnamwar/a/vietnamwar.htm
rest at: http://history1900s.about.com/od/vietnamwar/a/vietnamwar.htm