List of war crimes
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. 2,000,000 Algerians were displaced or forcibly resettled during the war, and over 800 villages were destroyed from 1957 to 1960.
Other French crimes included deliberate bombing, torture and mutilation of civilians, rape and sexual assaults, disembowelment of pregnant women, imprisonment without food in small cells, throwing detainees from helicopters and into the sea with concrete on their feet, and burying people alive.
The FLN also indulged in a large amount of atrocities, both against French pieds-noirs and against fellow Algerians whom they deemed as supporting the French or simply as refusing to support the Liberation effort. These crimes included killing unarmed children, women and the elderly, rape and disembowelment or decapitation of women and murdering children by slitting their throats or banging their heads against walls. French sources estimated that 70,000 Muslim civilians were killed, or abducted and presumed killed, by the FLN during the war. The FLN also killed 30,000 to 150,000 in people in post-war reprisals.

1955–1975: Vietnam War: 

United States perpetrated crimes: During the war 95 U.S. Army personnel and 27 U.S. Marine Corps personnel were convicted by court-martial of the murder or manslaughter of Vietnamese.: 33 

"Vietnam War Crimes Working Group" – Briefly declassified (1994) and subsequently reclassified (2002) documentary evidence compiled by a Pentagon task force detailing endemic war crimes committed by U.S. soldiers in Vietnam. Substantiating 320 incidents by Army investigators, includes seven massacres from 1967 through 1971 in which at least 137 South Vietnamese civilians died (not including the ones at My Lai), 78 other attacks on noncombatants in which at least 57 were killed, 56 wounded and 15 sexually assaulted, and 141 instances in which U.S. soldiers tortured civilian detainees or prisoners of war.

South Korean perpetrated crimes: 

North Vietnamese and Vietcong perpetrated crimes: Up to 155,000 refugees fleeing the final North Vietnamese Spring Offensive were alleged to have been killed or abducted on the road to Tuy Hòa in 1975.

1965 Indo-Pakistani War: Sepoy Maqbool Hussain was a Pakistani soldier who was wounded and captured by Indian forces during the 1965 War. For the next 40 years, Maqbool was deprived of his rights and was subjected to violent torture during which his Indian counterparts pulled out his finger nails, cut out his tongue since he didn't chant anti Pakistan slogans and various other brutal acts which would've been a violation of the Geneva accords.

Late 1960s – 1998: The Troubles: War crimes: Various unarmed male civilians (some of whom were named during a 2013 television programme) were shot, two of them (Patrick McVeigh, Daniel Rooney) fatally, in 1972, allegedly by the Military Reaction Force (MRF), an undercover military unit tasked with targeting Irish Republican Army paramilitaries during the last installment of the Troubles. Two brothers, whose names and casualty status were not mentioned in an article regarding the same matter in The Irish Times, ran a fruit stall in west Belfast, and were shot after being mistaken for IRA paramilitaries.
War crimes: The British security forces employed widespread torture and waterboarding on prisoners in Northern Ireland during interrogations in the 1970s. Liam Holden was wrongfully arrested by the security forces for the murder of a British Army soldier and became the last person in the United Kingdom to be sentenced to hang after being convicted in 1973, largely on the basis of an unsigned confession produced by torture. His death sentence was commuted to life imprisonment and he spent 17 years behind bars. On 21 June 2012, in the light of CCRC investigations which confirmed that the methods used to extract confessions were unlawful, Holden had his conviction quashed by the Court of Appeal in Belfast, at the age of 58. Former Royal Ulster Constabulary (RUC) interrogators during the Troubles admitted that beatings, the sleep deprivation, waterboarding, and the other tortures were systematic, and were, at times, sanctioned at a very high level within the force.
War crimes: The British Army and the RUC also operated under a shoot-to-kill policy in Northern Ireland, under which suspects were alleged to have been deliberately killed without any attempt to arrest them. In four separate cases considered by the European court of human rights – involving the deaths of ten IRA men, a Sinn Féin member and a civilian – seven judges ruled unanimously that Article 2 of the European Convention on Human Rights guaranteeing a right to life had been violated by Britain.
War crimes: British soldiers and police colluded with loyalist paramilitaries, such as the attacks by the Glenanne group, which carried out a string of attacks against Irish Catholics and nationalists in an area of Northern Ireland known as the "murder triangle" and also carried out some attacks in the Republic of Ireland. Evidence suggests that the group was responsible for the deaths of about 120 civilians. The Cassel Report investigated 76 killings attributed to the group and found evidence that British security forces were involved in 74 of those. One former member, RUC officer John Weir, said his superiors knew of the group's activities but allowed it to continue. Attacks attributed to the group include the Dublin and Monaghan bombings (which killed 34 civilians), the Miami Showband killings, the Reavey and O'Dowd killings and the Hillcrest Bar bombing.

1971 Bangladesh Liberation War: 

1970–1975: Cambodian civil war: The Extraordinary Chambers in the Courts of Cambodia for the Prosecution of Crimes Committed During the Period of Democratic Kampuchea, commonly known as the Cambodia Tribunal, is a joint court established by the Royal Government of Cambodia and the United Nations to try senior members of the Khmer Rouge for crimes against humanity committed during the Cambodian Civil War. The Khmer Rouge killed many people due to their political affiliation, education, class origin, occupation, or ethnicity.

1973 Yom Kippur war: 

1975-1999: Indonesian invasion and occupation of East Timor: During the 1975 invasion and the subsequent occupation, a significant portion of East Timor's population died. Researcher Ben Kiernan says that "a toll of 150,000 is likely close to the truth", although estimates of 200,000 or higher have been suggested.

1975–1990: Lebanese Civil War: 

1978–2021: Civil war in Afghanistan: This war ravaged the country for over 40 years, with several foreign actors playing important roles during different periods. From 2001 until 2021, US and other NATO troops took part in the fighting in Afghanistan in the "War on Terror" that is also treated in the corresponding section below.

During the war against the Coalition and Afghan government, the Taliban committed war crimes including massacres, suicide bombing, terrorism, and targeting civilians. United Nations reports have consistently blamed the Taliban and other anti-government forces for the majority of civilian deaths in the conflict, with the Taliban responsible for 75% of civilian deaths in 2011. The Taliban also perpetrated mass rapes and executions of surrendered soldiers.
Following the Taliban takeover of Afghanistan in 2021, the Taliban has also executed civilians and captured insurgents during the ongoing Republican insurgency in Afghanistan.

1980–2001: Internal conflict in Peru: 

1980–1988: Iran–Iraq War: Over 100,000 civilians other than those killed in Saddam's genocide are estimated to have been killed by both sides of the war by R.J.Rummel.

1986–1994: Uganda: The Times reports (November 26, 2005 p. 27):

Almost 20 years of fighting... has killed half a million people. Many of the dead are children... The LRA [a cannibalism cult] kidnaps children and forces them to join its ranks. And so, incredibly, children are not only the main victims of this war, but also its unwilling perpetrators... The girls told me they had been given to rebel commanders as "wives" and forced to bear them children. The boys said they had been forced to walk for days knowing they would be killed if they showed any weakness, and in some cases forced even to murder their family members... every night up to 10,000 children walk into the centre of Kitgum... because they are not safe in their own beds... more than 25,000 children have been kidnapped ...this year an average of 20 children have been abducted every week.
The International Criminal Court has launched an investigation and has issued indictments against LRA leaders.