List of war crimes
Decapitated heads were raised on sticks, bodies were gruesomely disemboweled, and body parts were taken as 'souvenirs'; Vietnamese soldiers of all political colors also committed such acts. The non-communist nationalist singer, Phạm Duy, wrote a bone-chilling ballad about the mothers of Gio Linh village in central Vietnam, each of whom had lost a son to a French Army massacre in 1948. Troops decapitated their bodies and displayed their heads along a public road to strike fear into those tempted to accept the Democratic Republic of Vietnam's sovereignty. Massacres did not start with the Americans in My Lai, or the Vietnamese communists in Hue in 1968. And yet, the French Union's massacre of over two hundred Vietnamese women and children in My Tratch in 1948 remains virtually unknown in France to this day."

1947–1948: Malagasy Uprising: During the French suppression of the pro-independence Malagasy Uprising, numerous atrocities were carried out such as mass killings, village burnings, torture, war rape, collective punishment, and throwing live prisoners out of airplanes (death flights). Between 11,000 and 90,000 Malagasy died in the fighting, along with about 800 French soldiers and other Europeans.

1948 Arab–Israeli War: Several massacres were committed during this war which could be described as war crimes. Nearly 15,000 people, mostly combatants and militants, were killed during the war, including 6,000 Jews and about 8,000 Arabs (mostly Muslims).

1945–1949: Indonesian War of Independence: South Sulawesi Campaign, about 4,500 civilians killed by Pro-Indonesian and Indonesian forces and pro-Dutch and Dutch colonial forces (KNIL).
Rawagede massacre: about 431 civilians killed by Dutch forces
Bersiap massacre: about 25,000 Indo-European civilians, Dutch, and loyalists killed by Indonesian nationalist forces.
Indonesian National Revolution: About 100–150,000 Chinese, Communists, Europeans (French, German, British), pro-Dutch etc. were killed by Indonesian nationalist forces and Indonesian youth.

1948–1960: Malayan Emergency: War crimes: In the Batang Kali massacre, about 24 unarmed villagers were killed by British troops. The British government claimed that these villagers were insurgents attempting to escape but this was later known to be entirely false as they were unarmed, nor actually supporting the insurgents nor attempting to escape after being detained by British troops. No British soldier was prosecuted for the murder at Batang Kali.
War crimes: includes beating, torturing, and killing by British troops and communist insurgents of non-combatants.
War crimes: As part of the Briggs Plan devised by British General Sir Harold Briggs, 500,000 people (roughly ten percent of Malaya's population) were eventually removed from the land and interned in guarded camps called "New Villages". The intent of this measure was to isolate villagers from contact with insurgents. While considered necessary, some of the cases involving the widespread destruction went beyond justification of military necessity. This practice was prohibited by the Geneva Conventions and customary international law which stated that the destruction of property must not happen unless rendered absolutely necessary by military operations.

1950–1953: Korean War: 

United States perpetrated crimes: 

North Korean perpetrated crimes: Rudolph Rummel estimated that the North Korean Army executed at least 500,000 civilians during the Korean War with many dying in North Korea's drive to conscript South Koreans to their war effort. Throughout the conflict, North Korean and Chinese forces routinely mistreated and tortured U.S. and UN prisoners of war. Mass starvation and diseases swept through the Chinese-run POW camps during the winter of 1950–51. About 43 percent of all U.S. POWs died during this period. In violation of the Geneva Conventions which explicitly stated that captor states must repatriate prisoners of war to their homeland as quickly as possible, North Korea detained South Korean POWs for decades after the ceasefire. Over 88,000 South Korean soldiers were missing and the Communists' themselves had claimed they had captured 70,000 South Koreans.: 141

South Korean perpetrated crimes: 

1952–1960: Mau Mau uprising: In attempt to suppress the insurgency in Kenya, British colonial authorities suspended civil liberties within the country. In response to the rebellion, many Kikuyu were relocated. According to British authorities 80,000 were interned. Caroline Elkins estimated that between 160,000 and 320,000 were moved into concentration camps. Other estimates are as high as 450,000 interned. Most of the remainder – more than a million – were held in "enclosed villages". Although some were Mau Mau guerillas, many were victims of collective punishment that colonial authorities imposed on large areas of the country. Thousands suffered beatings and sexual assaults during "screenings" intended to extract information about the Mau Mau threat. Later, prisoners suffered even worse mistreatment in an attempt to force them to renounce their allegiance to the insurgency and to obey commands. Significant numbers were murdered; official accounts describe some prisoners being roasted alive. Prisoners were questioned with the help of "slicing off ears, boring holes in eardrums, flogging until death, pouring paraffin over suspects who were then set alight, and burning eardrums with lit cigarettes". The British colonial police used a "metal castrating instrument" to cut off testicles and fingers. "By the time I cut his balls off", one settler boasted, "he had no ears, and his eyeball, the right one, I think, was hanging out of its socket. Too bad, he died before we got much out of him." According to David Anderson, the British hanged over 1,090 suspected rebels: far more than the French had executed in Algeria during the Algerian War. Another 400 were sentenced to death but reprieved because they were under 18 or women. The British declared some areas prohibited zones where anyone could be shot. It was common for Kikuyu to be shot because they "failed to halt when challenged."
The Chuka Massacre, which happened in Chuka, Kenya, was perpetrated by members of the King's African Rifles B Company in June 1953 with 20 unarmed people killed during the Mau Mau uprising. Members of the 5th KAR B Company entered the Chuka area on June 13, 1953, to flush out rebels suspected of hiding in the nearby forests. Over the next few days, the regiment had captured and executed 20 people suspected of being Mau Mau fighters for unknown reasons. It is found out that most of the people executed were actually belonged to the Kikuyu Home Guard – a loyalist militia recruited by the British to fight an increasingly powerful and audacious guerrilla enemy. The commanding officer of the soldiers responsible, Major Gerald Griffiths, was court-martialed for murder. He was found guilty and sentenced to 7 years in prison. In an atmosphere of atrocity and reprisal, the matter was swept under the carpet and nobody else ever stood trial for the massacre.
The Hola massacre was an incident during the conflict in Kenya against British colonial rule at a colonial detention camp in Hola, Kenya. By January 1959 the camp had a population of 506 detainees of whom 127 were held in a secluded "closed camp". This more remote camp near Garissa, eastern Kenya, was reserved for the most uncooperative of the detainees. They often refused, even when threats of force were made, to join in the colonial "rehabilitation process" or perform manual labour or obey colonial orders. The camp commandant outlined a plan that would force 88 of the detainees to bend to work. On 3 March 1959, the camp commandant put this plan into action – as a result, 11 detainees were clubbed to death by guards. 77 surviving detainees sustained serious permanent injuries. The British government accepts that the colonial administration tortured detainees, but denies liability.
The Lari massacre in the settlement of Lari occurred on the night of 25–26 March 1953, in which Mau Mau militants herded Kikuyu men, women and children into huts and set fire to them, killing anyone who attempted to escape. Official estimates place the death toll from the Lari massacre at 74 dead.
Mau Mau militants also tortured, mutilated and murdered Kikuyu on many occasions. Mau Mau racked up 1,819 murders of their fellow Africans, though again this number excludes the many additional hundreds who 'disappeared', whose bodies were never found.

1954–1962: Algerian War: The insurgency began in 1945 and was revived in 1954, winning independence in the early 1960s. The French army killed thousands of Algerians in the first round of fighting in 1945. After the Algerian independence movement formed a National Liberation Front (FLN) in 1954, the French Minister of the Interior joined the Minister of National Defense in 1955 in ordering that every rebel carrying a weapon, suspected of doing so, or suspected of fleeing, must be shot. French troops executed civilians from nearby villages when rebel attacks occurred, tortured both rebels and civilians, and interned Arabs in camps, where forced labor was required of some of them.