Who were the participants of the Vietnam war?

John McCain, a Navy pilot during the Vietnam War, spent five and a half-years as a prisoner of war in Vietnam. Oliver Stone, who served in an infantry division in Vietnam for 15 months, drew on his experience in the war for films like Platoon and Born on the 4th of July. Colin Powell served two tours in Vietnam. He was wounded by a punji-stick booby trap near the Vietnamese border with Laos in 1963.