The Nazi War Crimes and Japanese Imperial Government Records Interagency Working Group is a United States government interagency group, which is tasked with locating, identifying, inventorying, and recommending for declassification classified U.S. records relating to Nazi German and Imperial Japanese war crimes.
The group was created by the Nazi War Crimes Disclosure Act (NWCDA), passed in 1998, and the Japanese Imperial Government Disclosure Act of 2000 (JIGDA). The Interagency Working Group (IWG) has declassified an estimated 8 million pages of documents from the Office of Strategic Services, the Central Intelligence Agency, the Federal Bureau of Investigation, and Army intelligence. The group issued three reports to Congress between 1999 and 2007.
Some of the declassified documents center on reports of the Japanese exploitation of 'comfort women' before and during World War II, and the FBI and CIA's investigations of Adolf Hitler's possible survival of the war.