The Cambodian genocide

The genocide triggered a second outflow of refugees, many of whom escaped to neighboring Thailand and, to a lesser extent, Vietnam. The Vietnamese invasion of Cambodia ended the genocide by defeating the Khmer Rouge in January 1979. In 2001, the Cambodian government established the Khmer Rouge Tribunal to try the members of the Khmer Rouge leadership responsible for the Cambodian genocide. Trials began in 2009, and in 2014, Nuon Chea and Khieu Samphan were convicted and received life sentences for crimes against humanity committed during the genocide.

Musket: A smoothbore firearm fired from the shoulder. Thrust from exploding powder shoots the bullet forward like a chest pass in basketball.

Aide-de-Camp: A soldier who was appointed by an officer to be his confidential assistant. The aide wrote and delivered orders and held a position of responsibility which required him to know troop positions and where officer quarters were located. The aide-de-camp was an officer by virtue of his position and he took orders from his commander only.

Muzzle-loading: Muzzle-loading muskets or rifle muskets had to be loaded from the end by putting the gunpowder and the bullet or ball down the barrel.

Enfilade: (pronounced en-fuh-leyd) To fire along the length of an enemy's battle line.

Agriculture: The science of growing crops or raising livestock; farming.