United States atrocity crimes
Throughout its history, the United States has been accused of either directly committing or being complicit in violations of international criminal law known as atrocity crime which includes acts of genocide and ethnic cleansing, both within the modern borders of its territory and abroad, as well as war crimes and crimes against humanity. The detailed list at the international level mainly includes killings of members of a specific group of people, which is one of the elements of the definition given by the United Nations, however this definition is including acts with mental or other physical elements not widely covered by this list.
Source: Wikipedia — United States atrocity crimes (CC BY-SA 4.0)