Mass grave in the context of "Katyn massacre"

World War II losses of the Soviet Union were about 27 million both civilian and military from all war-related causes, although exact figures are disputed. A figure of 20 million was considered official during the Soviet era. The post-Soviet government of Russia puts the Soviet war losses at 26.6 million, on the basis of the 1993 study by the Russian Academy of Sciences, including people dying as a result of effects of the war. This includes 8,668,400 military deaths as calculated by the Russian Ministry of Defence.

The figures published by the Russian Ministry of Defence have been accepted by most historians outside Russia. However, the official figure of 8.7 million military deaths has been disputed by Russian scholars who believe that the number of dead and missing POWs is not correct and new research is necessary to determine actual losses. Officials at the Russian Central Defense Ministry Archive (CDMA) maintain that their database lists the names of roughly 14 million dead and missing service personnel. Russian President Dmitry Medvedev stated in 2009 that more than 2.4 million people are still officially considered missing in action, and that of the 9.5 million persons buried in mass graves, six million are unidentified. Some Russian scholars put the total number of losses in the war, both civilian and military, at over 40 million. In 2020, Mikhail Meltyukhov, who works with the Russian Federal archival project, claimed that 15.9–17.4 million civilians were killed on Soviet territory by Germany and its allies during the war.

Forensic anthropology is the application of the anatomical science of anthropology and its various subfields, including forensic archaeology and forensic taphonomy, in a legal setting. A forensic anthropologist can assist in the identification of deceased individuals whose remains are decomposed, burned, mutilated or otherwise unrecognizable, as might happen in a plane crash. Forensic anthropologists are also instrumental in the investigation and documentation of genocide and mass graves. Along with forensic pathologists, forensic dentists, and homicide investigators, forensic anthropologists commonly testify in court as expert witnesses. Using physical markers present on a skeleton, a forensic anthropologist can potentially determine a person's age, sex, stature, and race. In addition to identifying physical characteristics of the individual, forensic anthropologists can use skeletal abnormalities to potentially determine cause of death, past trauma such as broken bones or medical procedures, as well as diseases such as bone cancer.

The methods used to identify a person from a skeleton relies on the past contributions of various anthropologists and the study of human skeletal differences. Through the collection of thousands of specimens and the analysis of differences within a population, estimations can be made based on physical characteristics. Through these, a set of remains can potentially be identified. The field of forensic anthropology grew during the twentieth century into a fully recognized forensic specialty involving trained anthropologists as well as numerous research institutions gathering data on decomposition and the effects it can have on the skeleton.

The Kragujevac massacre was the mass murder of between 2,778 and 2,794 mostly Serb men and boys in Kragujevac by German soldiers on 21 October 1941. It occurred in the German-occupied territory of Serbia during World War II, and came as a reprisal for insurgent attacks in the Gornji Milanovac district that resulted in the deaths of ten German soldiers and the wounding of 26 others. The number of hostages to be shot was calculated as a ratio of 100 hostages executed for every German soldier killed and 50 hostages executed for every German soldier wounded, a formula devised by Adolf Hitler with the intent of suppressing anti-Nazi resistance in Eastern Europe.

After a punitive operation was conducted in the surrounding villages, during which over 400 males were shot and four villages burned down, another 70 male Jews and communists who had been arrested in Kragujevac were killed. Simultaneously, males between the ages of 16 and 60, including high school students, were assembled by German troops and local collaborators, and the victims were selected from amongst them. The selected males were then marched to fields outside the city, shot with heavy machine guns, and their bodies buried in mass graves. Contemporary German military records indicate that 2,300 hostages were shot. After the war, inflated estimates ranged as high as 7,000 deaths, but German and Serbian scholars have now agreed on the figure of nearly 2,800 killed, including 144 high school students. As well as Serbs, massacre victims included Jews, Romani people, Muslims, Macedonians, Slovenes, and members of other nationalities.

The Kremlin Wall Necropolis is the former national cemetery of the Soviet Union, located in Red Square in Moscow beside the Kremlin Wall. Burials there began in November 1917, when 240 pro-Bolsheviks who died during the Moscow Bolshevik Uprising were buried in mass graves. The improvised burial site gradually transformed into the centerpiece of military and civilian honor during the Second World War. It is centered on Lenin's Mausoleum, initially built in wood in 1924 and rebuilt in granite in 1929–30. After the last mass burial in Red Square in 1921, funerals there were usually conducted as state ceremonies and reserved as the final honor for highly venerated politicians, military leaders, cosmonauts, and scientists. In 1925–1927, burials in the ground were stopped; funerals were now conducted as burials of cremated ash in the Kremlin wall itself. Burials in the ground resumed with Mikhail Kalinin's funeral in 1946.

The Kremlin Wall was the de facto resting place of the Soviet Union's deceased national icons. Burial there was a status symbol among Soviet citizens. The practice of burying dignitaries at Red Square ended with the funeral of General Secretary Konstantin Chernenko in March 1985. The Kremlin Wall Necropolis was designated a protected landmark in 1974. After the dissolution of the Soviet Union, citizens of the Russian Federation and many other former post-Soviet states continue to pay their respects to the national heroes at the Kremlin Wall.

Sonderaktion 1005 (German pronunciation: [zɔndɐakt͡sjoːn aɪ̯ntaʊ̯zəntfʏnf], 'Special Action 1005'), also called Aktion 1005 or Enterdungsaktion (German pronunciation: [ɛntɐdʊŋsakt͡sjoːn], 'Exhumation Action'), was a top-secret Nazi operation conducted from June 1942 to late 1944. The goal of the project was to hide or destroy any evidence of the mass murder that had taken place under Operation Reinhard, the attempted (and largelysuccessful) extermination of all Jews in the General Government occupied zone of Poland. Groups of Sonderkommando prisoners, officially called Leichenkommandos ("corpse units"), were forced to exhume mass graves and burn the bodies; inmates were often put in chains to prevent them from escaping.

The project was put in place to destroy evidence of the genocide that had been committed by the Order Police battalions and Einsatzgruppen, the German death squads who murdered millions, including more than one million Jews, Roma and Slavs. The Aktion was overseen by selected squads of the Sicherheitsdienst (SD) and the uniformed Order Police.

The Battle of Changping (長平之戰) was a military campaign during the Warring States period of China that was fought between the two strongest military powers of the central plains, the State of Qin, State of Zhao northwest of present-day Gaoping). After a bitter two-year stalemate stretching 262 to 260 BC, the battle ended in a decisive victory for Qin forces. A vast majority of Zhao captives were ruthlessly executed, an unrecoverable loss of manpower and strategic reserve that permanently crippled the State of Zhao.

It is known as the greatest and longest battle of human antiquity. Infamous for being one of the deadliest battles in human history, several hundred thousand soldiers were buried alive in the aftermath. The main historical records for the events of this period is sourced from the Records of the Grand Historian, written more than a century later, which estimated roughly 450,000 dead on the Zhao side and 250,000 dead on the Qin side. Emperor Xuanzong of Tang (685–762) later built a temple over a collection of some of the human remains, and scattered bones and mass graves continue to be discovered on the site today.

The Holy Innocents' Cemetery (French: Cimetière des Saints-Innocents or Cimetière des Innocents) is a defunct cemetery in Paris that was used from the Middle Ages until the late 18th century. It was the oldest and largest cemetery in Paris and had often been used for mass graves. It was closed because of overuse in 1780, and in 1786 the remaining corpses were exhumed and transported to the unused subterranean quarries near Montparnasse known as the Catacombs. The place Joachim-du-Bellay in the Les Halles district now covers the site of the cemetery.

The cemetery took its name (referring to the Biblical Massacre of the Innocents) from the attached church of the Holy Innocents that was demolished at the same time as the cemetery was cleared.