Malcolm Browne’s photograph of the burning monk to Nick Ut’s picture of a nine-year-old girl running from a napalm attack, the Associated Press’s Saigon bureau captured the realities and tragedies of the Vietnam war. AP won six Pulitzer prizes for its war coverage, four for photography.  WARNING: Some photos are extremely graphic and caution is advised.

Sunlight breaks through dense foliage around the town of Binh Gia as South Vietnamese troops, joined by US advisers, rest after a tense night of waiting in an ambush position for a Vietcong attack that did not come, January 1965 Photograph: Horst Faas/AP Facebook Twitter Pinterest

Caught in sudden monsoon rain, part of a company of about 130 South Vietnamese soldiers moves downriver in sampans during a dawn attack on a Vietcong camp on 10 January 1966. Several guerrillas were reported killed or wounded in the action 13 miles northeast of Can Tho, in…