AP PHOTOS: The changing faces of Vietnam War landmarks During the Vietnam War, Da Nang was a major base for both the U.S. and South Vietnamese forces. The first American combat troops landed there in 1965, and it became a hub for operations and supply. apnews.com/article/vietnam-war-saigon-anniversary-landmarks-photo-gallery-a4d04844d78a6822a751dae70ba7bc01