Tuol Sleng Genocide Museum - Non-Cambodian prisoners

Two Franco-Vietnamese brothers named Rovin and Harad Bernard were detained in April 1976 after they were transferred from Siem Reap, where they had worked tending cattle. Another Frenchman named Andre Gaston Courtigne, a 30-year-old clerk and typist at the French embassy, was arrested the same month along with his Khmer wife in Siem Reap.

It is possible that a handful of French nationals who went missing after the 1975 evacuation of Phnom Penh also passed through S-21. Two Americans were captured under similar circumstances. James Clark and Lance McNamara in April 1978 were sailing when their boat drifted off course and sailed into Cambodian waters. They were arrested by Khmer patrol boats, taken ashore, where they were blindfolded, placed on trucks, and taken to the then-deserted Phnom Penh.

Abatis: (pronounced ab-uh-tee, ab-uh-tis, uh-bat-ee, or uh-bat-is) A line of trees, chopped down and placed with their branches facing the enemy, used to strengthen fortifications.

Dahlgren Guns: Bronze boat howitzers and rifles used by the navies which were useful in river operations. They were named after Admiral John A. Dahlgren, their inventor.

Industry: Manufacturing goods from raw materials, such as cloth from cotton or machine parts from iron.

Fascine: (pronounced fah-seen) A tightly bound bundle of straight sticks used to reinforce earthworks, trenches or lunettes. Fascines could also be used to make revetments, field magazines, fill material and blinds.

Lunette: (pronounced loo-net) A fortification shaped roughly like a half-moon. It presented two or three sides to the enemy but the rear was open to friendly lines.