The U.S. does not always follow international law. For example, some critics assert the U.S.-led invasion of Iraq was not a proper response to an imminent threat, but an act of aggression which violated international law.[73][74] For example, Benjamin Ferencz, a chief prosecutor of Nazi war crimes at Nuremberg said George W. Bush should be tried for war crimes along with Saddam Hussein for starting aggressive wars—Saddam for his 1990 attack on Kuwait and Bush for his 2003 invasion of Iraq.[75]