Atrocity crime in the context of "International Military Tribunal"

The Nuremberg trials were international criminal trials held by France, the Soviet Union, the United Kingdom, and the United States against leaders of the defeated Nazi Germany for plotting and carrying out invasions of several countries across Europe and committing atrocities against their citizens in the Second World War.

Between 1939 and 1945, Nazi Germany invaded many countries across Europe, inflicting 27 million deaths in the Soviet Union alone. Proposals for how to punish the defeated Nazi leaders ranged from a show trial (the Soviet Union) to summary executions (the United Kingdom). In mid-1945, France, the Soviet Union, the United Kingdom, and the United States agreed to convene a joint tribunal in Nuremberg, occupied Germany, with the Nuremberg Charter as its legal instrument. Between 20 November 1945 and 1 October 1946, the International Military Tribunal (IMT) tried 22 of the most important surviving leaders of Nazi Germany in the political, military, and economic spheres, as well as six German organizations. The purpose of the trial was not only to try the defendants but also to assemble irrefutable evidence of Nazi war crimes, offer a history lesson to the defeated Germans, and delegitimize the traditional German elite.

International criminal law (ICL) is a body of public international law designed to prohibit certain categories of conduct commonly viewed as serious atrocities and to make perpetrators of such conduct criminally accountable for their perpetration. The core crimes under international law are genocide, war crimes, crimes against humanity, and the crime of aggression.

Classical international law governs the relationships, rights, and responsibilities of states. After World War II, the Charter of the International Military Tribunal and the following Nuremberg trial revolutionized international law by applying its prohibitions directly to individuals, in this case the defeated leaders of Nazi Germany, thus inventing international criminal law. After being dormant for decades, international criminal law was revived in the 1990s to address the war crimes in the Yugoslav Wars and the Rwandan genocide, leading to the establishment of a permanent International Criminal Court in 2001.

Non-interventionism or non-intervention is commonly understood as "a foreign policy of political or military non-involvement in foreign relations or in other countries' internal affairs". This is based on the grounds that a state should not interfere in the internal politics of another state as well as the principles of state sovereignty and self-determination. A similar phrase is "strategic independence".

Non-interventionism became a norm in international relations before World War I. During the Cold War, it was often violated in order to instigate revolutions, prevent revolutions, or protect international security. Many countries have since adopted their own interpretation of non-interventionism or modified it according to the responsibility to protect any population from egregious crimes.

From 1885 to 1908, many atrocities were committed in the Congo Free State (today the Democratic Republic of the Congo) under the absolute rule of King Leopold II of Belgium. These atrocities were particularly associated with the labour policies, enforced by colonial administrators, used to collect natural rubber for export. Combined with epidemic disease, famine, mass population displacement and, falling birth rates caused by these disruptions, the atrocities contributed to a sharp decline in the Congolese population. The magnitude of the population decline over the period is disputed, with modern estimates ranging from 1.2 million to 10 million.

At the Berlin Conference of 1884–1885, the European powers recognized the claims of a supposedly philanthropic organisation run by Leopold II, to most of the Congo Basin region. Leopold had long-held ambitions for colonial expansion. The territory under Leopold's control exceeded 2,600,000 km (1,000,000 sq mi), more than 85 times the territory of Belgium; amid financial problems, it was directed by a tiny cadre of administrators drawn from across Europe. Initially the quasi-colony proved unprofitable and insufficient, with the state always close to bankruptcy. The boom in demand for natural rubber, which was abundant in the territory, created a radical shift in the 1890s—to facilitate the extraction and export of rubber, all vacant land in the Congo was nationalised, with the majority distributed to private companies as concessions. Some was kept by the state. Between 1891 and 1906, the companies were allowed free rein to exploit the concessions, with the result being that forced labour and violent coercion were used to collect the rubber cheaply and maximise profit. The Free State's military force, the Force Publique, enforced the labour policies. Individual workers who refused to participate in rubber collection could be killed and entire villages razed.