Ethnic victims

Rooms of the Tuol Sleng Genocide Museum contain thousands of photos taken by the Khmer Rouge of their victims.
Ethnic Vietnamese, ethnic Thai, ethnic Chinese, ethnic Cham, Cambodian Christians, and other minorities were also targeted. The Khmer Rouge forcibly relocated minority groups and banned their languages. By decree, the Khmer Rouge banned the existence of more than 20 minority groups, which constituted 15% of Cambodia's population. While Cambodians in general were victims of the Khmer Rouge regime, the persecution, torture, and killings committed by the Khmer Rouge are considered an act of genocide according to the United Nations as ethnic and religious minorities were systematically targeted by Pol Pot and his regime.

Flying Battery: A system where several horse-drawn cannons would ride along the battle front, stop and set up the guns, fire, limber up, and ride to another position. This practice gave the impression that many guns were in use when only a few were actually being used.

Cavalry: A branch of the military mounted on horseback. Cavalry units in the Civil War could move quickly from place to place or go on scouting expeditions on horseback, but usually fought on foot. Their main job was to gather information about enemy movements. Until the spring of 1863, the Confederate cavalry force was far superior to its Federal counterpart.

"Bonnie Blue Flag": Extremely popular Confederate song named after the first flag of the Confederacy, which had one white star on a blue background. The lyrics listed each state in the order in which they seceded from the Union.

Sectionalism: Promoting the interests of a section or region (such as the North or the South) instead of the entire country.

Rout: A crushing defeat where, often, the losers run from the field.