While the United States was involved in the prosecution of war criminals, principally at the International Military Tribunal in Nuremberg and the International Military Tribunal for the Far East in Tokyo, the Nuremberg Military Tribunals, and other judicial proceedings, US military and intelligence agencies protected some war criminals in the interest of obtaining technical or intelligence information from them, or taking part in ongoing intelligence or engineering (e.g., Operation Paperclip). Multiple US intelligence organizations were involved (the Central Intelligence Agency was not created until 1947 and in control of its clandestine services until 1952). The relationships with German war criminals started immediately after the end of the Second World War, but some of the Japanese rela