Vietnamese

The Khmer Rouge initially ordered the expulsion of ethnic Vietnamese from Cambodia but then conducted large scale massacres of large numbers of Vietnamese civilians who were being deported out of Cambodia. The regime then prevented the remaining 20,000 ethnic Vietnamese from fleeing, and much of this group was also executed. The Khmer Rouge also used the media to support their goals of genocide. Radio Phnom Penh called on Cambodians to "exterminate the 50 million Vietnamese."

Additionally, the Khmer Rouge conducted many cross-border raids into Vietnam where they slaughtered an estimated 30,000 Vietnamese civilians. Most notably, during the Ba Chúc massacre in April 1978, the Khmer Rouge military crossed the border and entered the village, slaughtering 3,157 Vietnamese civilians. This caused an urgent response from the Vietnamese government, precipitating the Cambodian�"Vietnamese War in which the Khmer Rouge was ultimately defeated.[117

Territory: Land within the mainland boundaries of the country that had not yet become a state by 1861. Nevada Territory, Utah Territory, and Colorado Territory had basically the same boundaries they have today as states; Washington Territory encompassed today's states of Washington and Idaho; Dakota Territory is now the states of Montana, North Dakota, South Dakota, and the northern part of Wyoming; Nebraska Territory today is the southern part of Wyoming and the state of Nebraska; New Mexico Territory included the states of Arizona and New Mexico; and the remaining unorganized land, also called the Indian Territory, filled the approximate boundaries of Oklahoma.

Furlough: A leave from duty, granted by a superior officer. The furloughed soldier carried papers which described his appearance, his unit, when he left and when he was due to return. Furlough papers also contained a warning that failure to return on time would cause the soldier to be "considered a deserter".

West Point: The United States Military Academy at West Point, New York was the military school for more than 1,000 officers in both the Union and Confederate armies�"including Robert E. Lee and Ulysses S. Grant.

Brogan: A leather shoe, similar to an ankle-high boot, issued to soldiers during the Civil War. Brogans were also popular amongst civilians during the time period.

Corps: (pronounced kohr or korz) A very large group of soldiers led by (Union) a major general or (Confederate) a lieutenant general and designated by Roman numerals (such as XI Corps). Confederate corps were often called by the name of their commanding general (as in Jackson's Corps). 1 company = 50 to 100 men, 10 companies = 1 regiment, about 4 regiments = 1 brigade, 2 to 5 brigades = 1 division, 2 or more divisions = 1 corps, 1 or more corps = 1 army.

Tuol Sleng Genocide Museum - Survivors

The Documentation Center of Cambodia has recently estimated that, in fact, at least 179 prisoners were freed from S-21 between 1975 and 1979 and approximately 23 prisoners (including 5 children, two of them siblings Norng Chanphal and Norng Chanly) survived when the prison was liberated in January 1979. One child died shortly thereafter. Of the 179 prisoners who were released, most disappeared and only a few are known to have survived after 1979. It was found that at least 60 persons (out of the DC Cam list) who are listed as having survived were first released but later rearrested and executed.

Popular Sovereignty: (pronounced sov-rin-tee) This doctrine was prominent during the debate over slavery in the territories. Popular sovereignty said that the people of each territory should be able to decide for themselves if slavery should be allowed in their territory when it became a state.

North: Also called the Union or the United States the North was the part of the country that remained loyal to the Federal government during the Civil War. Northern states were: Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, and Wisconsin. West Virginia became a Northern state in 1863 and California and Oregon were also officially Northern but they had little direct involvement in the War.

Ambush: To lie in wait for an unexpected attack.

Picket: Soldiers posted on guard ahead of a main force. Pickets included about 40 or 50 men each. Several pickets would form a rough line in front of the main army's camp. In case of enemy attack, the pickets usually would have time to warn the rest of the force.

Parrott gun: A rifled artillery piece with a reinforcing band at the rear, or breech. Parrott guns were used by both the Army and the Navy, and ranged from 10-pounders to 300-pounders. They were named after their designer, Robert Parker Parrott.

United States - Operation Breakfast

From 1970 to 1973 a massive United States bombing campaign against the Khmer Rouge devastated rural Cambodia. An earlier U.S. bombing campaign of Cambodia actually started on 18 March 1969 with Operation Breakfast, but U.S. bombing in Cambodia started years earlier than that.

The number of Cambodian civilian and Khmer Rouge deaths caused by U.S. bombing is disputed and difficult to disentangle from the broader Cambodian Civil War. Estimates range from 30,000 to 500,000. Sliwinski estimates that approximately 17% of total civil war deaths can be attributed to U.S. bombing, noting that this is far behind the leading causes of death, as the U.S. bombing was concentrated in underpopulated border areas. Ben Kiernan attributes 50,000 to 150,000 deaths to the U.S. bombing.

Massacre: The cruel killing of a number of helpless or unresisting people.

Picket: Soldiers posted on guard ahead of a main force. Pickets included about 40 or 50 men each. Several pickets would form a rough line in front of the main army's camp. In case of enemy attack, the pickets usually would have time to warn the rest of the force.

Interior Lines: A military strategy which holds that the fastest, most efficient maneuvers, transportation and communication are conducted within an enclosed geographic area as opposed to outside the geographic area.

Ironclad: A ship protected by iron armor.

"Infernal Machine": A term of contempt for torpedoes (either the land or the water variety). This term was also used to describe the Confederate vessel H.L. Hunley- the first successful submarine.

Ethnic victims

Scholars and historians have varying opinions on whether the persecution and killings under the hands of the Khmer Rouge should be considered genocide. This is because the earlier scholarship which came about right after the fall of the Khmer Rouge regime in 1979 had claimed that the victims could have been killed due to the circumstances they were in. For instance, Michael Vickery opined that the killings were "largely the result of the spontaneous excesses of a vengeful, undisciplined peasant army."

This view was also supported by Alexander Hinton, who related an account by a former Khmer Rouge cadre who claimed that the killings were acts of retribution for the injustices of the Lon Nol soldiers when they killed people who were known to be former Viet Minh agents before the rise of Pol Pot and Khmer Rouge to power. Vickery�"erroneously, as maintained by the more recent scholarship of Ben Kiernan�"argued that the number of Cham victims during the Khmer Rouge regime to be around 20,000 which would rule out the crime of genocide against Pol Pot and the Khmer Rouge. The killings were a centralized and bureaucratic effort by the Khmer Rouge regime, as recently documented by the Documentation Center of Cambodia (DC-Cam) through the discovery of Khmer Rouge internal security documents which instructed the killings across Cambodia. However there were also instances of "indiscipline and spontaneity in the mass killings." On top of that, Etcherson has also maintained that with the systematic mass killings based on political affiliation, ethnicity, religion, and citizenship resulting in the loss of a third of the Cambodian population, the Khmer Rouge is effectively guilty of committing genocide.

Long Roll: A long, continuous drum call which commanded a regiment to assemble.

Parole: A pledge by a prisoner of war or a defeated soldier not to bear arms. When prisoners were returned to their own side during the War (in exchange for men their side had captured) the parole was no longer in effect and they were allowed to pick up their weapons and fight. When the South lost the War and the Confederate armies gave their parole they promised never to bear weapons against the Union again.

Republican Party: A political party created in the 1850s to prevent the spread of slavery to the territories. Eventually Republicans came to oppose the entire existence of slavery. Abraham Lincoln was the first Republican president. Very few Southerners were Republicans.

Defeat in Detail: Defeating a military force unit by unit. This occurred when units were unable to support one another, often because of distance.

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.

Cambodian Civil War

Sihanouk was deposed in 1970. Premier Lon Nol deposed him with the support of the National Assembly, establishing the pro-United States Khmer Republic. On the Chinese Communist Party (CCP)'s advice, Sihanouk, who was in exile in Beijing, formed an alliance with the Khmer Rouge, and became the nominal head of a Khmer Rouge�"dominated government-in-exile (known by its French acronym, GRUNK) backed by China. Although thoroughly aware of the weakness of Lon Nol's forces and loath to commit American military force to the new conflict in any form other than air power, the Nixon administration announced its support for the new Khmer Republic.

Contrabands: Escaped slaves who fled to the Union lines for protection.

Total War: A new way of conducting war appeared during the Civil War. Instead of focusing only on military targets, armies conducting total war destroyed homes and crops to demoralize and undermine the civilian base of the enemy's war effort. (Sherman in Georgia or Sheridan in the Shenandoah Valley, for example.)

Revolver: A handheld firearm with a chamber to hold multiple bullets (usually 6). The chamber turns so that each bullet can be fired in succession without reloading.

Cash Crop: A crop such as tobacco or cotton which was grown to be sold for cash --not grown for food like corn or wheat.

Caisson: (pronounced kay-suhn) �" A two-wheeled cart that carried two ammunition chests, tools, and a spare wheel for artillery pieces. The caisson could be attached to a limber, which would allow both to be pulled by a team of horses.

Tuol Sleng Genocide Museum - Prison Staff

The documentation unit was responsible for transcribing tape recorded confessions, typing the handwritten notes from prisoners' confessions, preparing summaries of confessions, and maintaining files. In the photography sub-unit, workers took mug shots of prisoners when they arrived, pictures of prisoners who had died while in detention, and pictures of important prisoners after they were executed. Thousands of photographs have survived, but thousands are still missing.

Rebel: Loyal to the Confederate States. Also Southern or Confederate.

Indian Territory: The area that is now Oklahoma (except for the panhandle.)

Rampart: A large earthen mound used to shield the inside of a fortified position from artillery fire and infantry assault. Occasionally ramparts might be constructed of other materials, such as sandbags.

Recruits: The term used to describe new soldiers.

Republican Party: A political party created in the 1850s to prevent the spread of slavery to the territories. Eventually Republicans came to oppose the entire existence of slavery. Abraham Lincoln was the first Republican president. Very few Southerners were Republicans.

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.

Havelock: (pronounced hav-loc) A white cloth cover that went over a soldier's kepi, and had a long back that covered a soldier's neck and shoulders. Although it saw use in the early stages of the war, soldiers quickly learned that it cut off circulation around the head and face, leading to the eventual abandonment of the havelock.

Army: The largest organizational group of soldiers, made up of one or more corps. There were 16 Union armies (named after rivers, such as the Army of the Potomac) and 23 Confederate armies (named after states or regions, such as the Army of Northern Virginia). 1 company = 50 to 100 men, 10 companies = 1 regiment, about 4 regiments = 1 brigade, 2 to 5 brigades = 1 division, 2 or more divisions = 1 corps, 1 or more corps = 1 army.

Campaign: A series of military operations that form a distinct phase of the War (such as the Shenandoah Valley Campaign).

Standard: A flag or banner carried into battle on a pole.

Parrott gun: A rifled artillery piece with a reinforcing band at the rear, or breech. Parrott guns were used by both the Army and the Navy, and ranged from 10-pounders to 300-pounders. They were named after their designer, Robert Parker Parrott.

The Cambodian genocide

The Cambodian genocide (Khmer: រ�"�"�"�'រល័យពូជសាស�"៍�"ៅកម�'ពុជា) was the systematic persecution and killing of Cambodians by the Khmer Rouge under the leadership of Communist Party of Kampuchea general secretary Pol Pot, who radically pushed Cambodia towards an entirely self-sufficient agrarian socialist society. It resulted in the deaths of 1.5 to 2 million people from 1975 to 1979, nearly a quarter of Cambodia's population in 1975 (c. 7.8 million).

Pol Pot and the Khmer Rouge had long been supported by the Chinese Communist Party (CCP) and its chairman, Mao Zedong;[a] it is estimated that at least 90% of the foreign aid which the Khmer Rouge received came from China, including at least US$1 billion in interest-free economic and military aid in 1975 alone. After it seized power in April 1975, the Khmer Rouge wanted to turn the country into an agrarian socialist republic, founded on the policies of ultra-Maoism and influenced by the Cultural Revolution.[b] Pol Pot and other Khmer Rouge officials met with Mao in Beijing in June 1975, receiving approval and advice, while high-ranking CCP officials such as Politburo Standing Committee member Zhang Chunqiao later visited Cambodia to offer help.[c] To fulfill its goals, the Khmer Rouge emptied the cities and forced Cambodians to relocate to labor camps in the countryside, where mass executions, forced labor, physical abuse, malnutrition, and disease were rampant. In 1976, the Khmer Rouge renamed the country Democratic Kampuchea.

Ratify: To formally approve or sanction.

Company: A group of 50 to 100 soldiers led by a captain. 10 companies = 1 regiment, about 4 regiments = 1 brigade, 2 to 5 brigades = 1 division, 2 or more divisions = 1 corps, 1 or more corps = 1 army.

Reserve(s): Part(s) of the army which were withheld from fighting during a particular battle but ready and available to fight if necessary.

Emancipation: Freedom from slavery.

Navy: A branch of the military using ships to conduct warfare. During the Civil War, "blue water" ships cruised the oceans and "brown water" boats floated up and down the rivers.

Tuol Sleng Genocide Museum - Prison Staff

The interrogation unit was split into three separate groups: Krom Noyobai or the political unit, Krom Kdao or the hot unit and Krom Angkiem, or the chewing unit. The hot unit (sometimes called the cruel unit) was allowed to use torture. In contrast, the cold unit (sometimes called the gentle unit) was prohibited from using torture to obtain confessions. If they could not make prisoners confess, they would transfer them to the hot unit. The chewing unit dealt with tough and important cases. Those who worked as interrogators were literate and usually in their 20s.

Parrott gun: A rifled artillery piece with a reinforcing band at the rear, or breech. Parrott guns were used by both the Army and the Navy, and ranged from 10-pounders to 300-pounders. They were named after their designer, Robert Parker Parrott.

Theater: A theater of war is a region or area where fighting takes place.

Sentry: (pronounced SEHN-tree) A soldier standing guard.

Redoubt: (pronounced rih-dowt) An enclosed field work - without redans - which had several sides and was used to protect a garrison from attacks from several directions. While redoubts could be very useful, one key weakness was that each protruding angle was a salient. This meant that the redoubt would be susceptible to enfilading fire. A redoubt could also extend from a permanent fortress.

Carbine: A breech-loading, single-shot, rifle-barreled gun primarily used by cavalry troops. A carbine's barrel is several inches shorter than a regular rifle-musket.