During the 1968 Tet Offensive, the former capital city at Hue, Vietnam was overrun by communist forces. Located in the northern section of South Vietnam, Hue was among the first cities captured and the last "liberated" in the southern and American push-back.
The civilians in this photo are making their way back into the city after it was recaptured by anti-communist forces. Hue's homes and infrastructure was heavily damaged during the infamous Battle of Hue.
After the communist victory in the war, this city was seen as a symbol of feudalism and reactionary thinking. The new government neglected Hue, allowing it to crumble still further.