VIETNAM. 1968. Battle of Hue. An American medic tries to tend for his comrade. The Battle of Huế (also called the Siege of Huế), was one of the bloodiest and longest battles of the Vietnam War.

Don McCullin, a British war photographer who worked in Vietnam in the late 1960s and Iraq in 2003 believes that the “total access” that photographers had in Vietnam was critical to their success in reaching the public. “I was with the 5th Marines at Hue for two weeks,” said Mr. McCullin, referring to the historic battle in 1968, during which this picture was shot. “They took about 70 dead. I photographed the dead and wounded without any restrictions. They would not stand for it today. They treat you in these embeds like a dog on a leash.”

Photograph: Don McCullin/Contact Press Images