Prisoners of war in the context of "Penal military unit"

World War II was the deadliest military conflict in history. An estimated total of 70–85 million deaths were caused by the conflict, representing about 3% of the estimated global population of 2.3 billion in 1940. Deaths directly caused by the war (including military and civilian fatalities) are estimated at 50–56 million, with an additional estimated 19–28 million deaths from war-related disease and famine. Civilian deaths totaled 50–55 million. Military deaths from all causes totaled 21–25 million, including deaths in captivity of about 5 million prisoners of war. More than half of the total number of casualties are accounted for by the dead of the Republic of China and of the Soviet Union. The following tables give a detailed country-by-country count of human losses.

Recent historical scholarship has shed new light on the topic of Second World War casualties. Research in Russia since the collapse of the Soviet Union has caused a revision of estimates of Soviet World War II fatalities. According to Russian government figures, USSR losses within postwar borders now stand at 26.6 million, including 8 to 9 million due to famine and disease. In August 2009 the Polish Institute of National Remembrance (IPN) researchers estimated Poland's dead at between 5.6 and 5.8 million. Historian Rüdiger Overmans of the Military History Research Office (Germany) published a study in 2000 estimating the German military dead and missing at 5.3 million, including 900,000 men conscripted from outside of Germany's 1937 borders, in Austria, and in east-central Europe. The Red Army claimed responsibility for the majority of Wehrmacht casualties during World War II. The People's Republic of China puts its war dead at 20 million, while the Japanese government puts its casualties due to the war at 3.1 million. An estimated 7–10 million people died in the Dutch, British, French and US colonies in South and Southeast Asia, mostly from war-related famine.

Corsairs (French: corsaire) were privateers, authorised to conduct raids on shipping of a foreign state at war with the Kingdom of France, on behalf of the French crown. Seized vessels and cargo were sold at auction, with the corsair captain entitled to a portion of the proceeds. Although not French Navy personnel, corsairs were considered legitimate combatants in France (and allied nations), provided the commanding officer of the vessel was in possession of a valid letter of marque (lettre de marque or lettre de course, the latter giving corsairs their name), and the officers and crew conducted themselves according to contemporary admiralty law. By acting on behalf of the French Crown, if captured by the enemy, they could in principle claim treatment as prisoners of war, instead of being considered pirates.

Because corsairs gained a swashbuckling reputation, the word "corsair" is also used generically as a more romantic or flamboyant way of referring to privateers, or even to pirates. The Barbary pirates of North Africa as well as the Ottoman Empire were sometimes called "Turkish corsairs".

A prison, also known as a jail, gaol, penitentiary, detention center, correction center, correctional facility, or remand center, is a facility where people are imprisoned under the authority of the state, usually as punishment for various crimes. They may also be used to house those awaiting trial (pre-trial detention). Prisons serve two primary functions within the criminal-justice system: holding people charged with crimes while they await trial, and confining those who have pleaded guilty or been convicted to serve out their sentences.

Prisons can also be used as a tool for political repression by authoritarian regimes who detain perceived opponents for political crimes, often without a fair trial or due process; this use is illegal under most forms of international law governing fair administration of justice. In times of war, belligerents or neutral countries may detain prisoners of war or detainees in military prisons or in prisoner-of-war camps. At any time, states may imprison civilians – sometimes large groups of civilians – in internment camps.

The Malmedy massacre was a German war crime committed by soldiers of the Waffen-SS on 17 December 1944 at the Baugnez crossroads near the city of Malmedy, Belgium, during the Battle of the Bulge (16 December 1944 – 25 January 1945). Soldiers of Kampfgruppe Peiper summarily killed eighty-four U.S. Army prisoners of war (POWs) who had surrendered after a brief battle. The Waffen-SS soldiers had grouped the U.S. POWs in a farmer's field, where they used machine guns to shoot and kill the grouped POWs; many of the prisoners of war who survived the gunfire of the massacre were executed with a gunshot to the head.

Besides the summary execution of the eighty-four U.S. POWs at the farmer's field, the term "Malmedy massacre" also includes other Waffen-SS massacres of civilians and POWs in Belgian villages and towns in the time after their first massacre of U.S. POWs at Malmedy; these Waffen-SS war crimes were the subjects of the Malmedy massacre trial (May–July 1946), which was a part of the Dachau trials (1945–1947).

During World War II, Soviet prisoners of war (POWs) held by Nazi Germany and primarily in the custody of the German Army were starved and subjected to deadly conditions. Of nearly six million who were captured, around three million died during their imprisonment.

In June 1941, Germany and its allies invaded the Soviet Union and carried out a war of extermination with complete disregard for the laws and customs of war. Among the criminal orders issued before the invasion was for the execution of captured Soviet commissars. Although Germany largely upheld its obligations under the Geneva Convention with prisoners of war of other nationalities, military planners decided to breach it with the Soviet prisoners. By the end of 1941, over 3 million Soviet soldiers had been captured, mostly in large-scale encirclement operations during the German Army's rapid advance. Two-thirds of them had died from starvation, exposure, and disease by early 1942. This is one of the highest sustained death rates for any mass atrocity in history.

The Korean Armistice Agreement (Korean: 한국정전협정; Hanja: 韓國停戰協定) is an armistice that brought about a cessation of hostilities of the Korean War. It was signed by United States Army Lieutenant General William Harrison Jr. and General Mark W. Clark representing the United Nations Command (UNC), North Korea leader Kim Il Sung and General Nam Il representing the Korean People's Army (KPA), and Peng Dehuai representing the Chinese People's Volunteer Army (PVA). The armistice was signed on 27 July 1953, and was designed to "ensure a complete cessation of hostilities and of all acts of armed force in Korea until a final peaceful settlement is achieved."

During the 1954 Geneva Conference in Switzerland, Chinese Premier and foreign minister Zhou Enlai suggested that a peace treaty should be implemented on the Korean peninsula. However, the US secretary of state, John Foster Dulles, did not accommodate this attempt to achieve such a treaty. A final peace settlement has never been achieved. The signed armistice established the Korean Demilitarized Zone (DMZ), the de facto new border between the two nations, put into force a ceasefire, and finalized repatriation of prisoners of war. The DMZ runs close to the 38th parallel and has separated North and South Korea since the Korean Armistice Agreement was signed in 1953.

The governments of the German Empire and Nazi Germany (under Adolf Hitler) ordered, organized, and condoned a substantial number of war crimes, first in the Herero and Nama genocide and then in the First and Second World Wars. The most notable of these is the Holocaust, in which millions of European Jews were systematically abused, deported, and murdered, along with Romani in the Romani Holocaust and non-Jewish Poles. Millions of civilians and prisoners of war also died as a result of German abuses, mistreatment, and deliberate starvation policies in those two conflicts. Much of the evidence was deliberately destroyed by the perpetrators, such as in Sonderaktion 1005, in an attempt to conceal their crimes.

Surrender, in military terms, is the relinquishment of control over territory, combatants, fortifications, ships or armament to another power. A surrender may be accomplished peacefully or it may be the result of defeat in battle. A sovereign state may surrender following defeat in a war, usually by signing a peace treaty or capitulation agreement. A battlefield surrender, either by individuals or when ordered by officers, normally results in those surrendering becoming prisoners of war.