Battlefield Vietnam, also a PBS site, focuses on three military topics: Guerrilla Tactics, Air War and The Siege at Khe Sanh.
"Shortly after the North Vietnamese launched an aggressive military campaign in 1968, President Johnson recommended the halt of the bombing of North Vietnam.
"This site does not try to document the entire history of the Vietnam War but is intended as a picture essay, illustrating some of the incredible conditions under which soldiers from both sides lived, fought, played and ultimately died.