Operation Northern Watch (ONW), the successor to Operation Provide Comfort, was a Combined Task Force (CTF) charged with enforcing its own no-fly zone above the 36th parallel in Iraq. Its mission began on 1 January 1997.The coalition partners of the United States, United Kingdom, and Turkey provided approximately 45 aircraft and more than 1,400 personnel to support Operation Northern Watch. The joint U.S. forces of some 1,100 U.S.