Colonization and foreign rule have kept Southeast Asia's national borders in flux for centuries. This map from 1886 shows present-day Vietnam and Cambodia under French colonial rule as well as the kingdom of Siam (now Thailand).
Mortar shells and a grenade remain in the former Demilitarized Zone between North and South Vietnam. Land mines left from the war have continued to injure and maim residents since the war ended in 1975.
During the 1960s, Communist guerillas dug these narrow tunnels that ran for about seventy-five miles from the countryside in Cu Chi west of Saigon all the way to the Cambodian border.
The former United States Embassy in Saigon, a multi-story building sided with reinforced white grillwork, was the site of the final U.S. helicopter evacuation at the end of the Vietnam War on April 30, 1975.