SENIOR AIRMAN Tuttle from the 4th Fighter Wing Fuels Shop, Seymour Johnson Air Force Base, North Carolina, signs his reenlistment paperwork, with the help of Brigadier General Lance Smith, Commander, 4th Expeditionary Wing, at Doha, Qatar, during Air Expeditionary Force (AEF) IV, part of Operation SOUTHERN WATCH. AEFs help build predictability and stability into the way the Air Force schedules its people to respond to contingencies. SOUTHERN WATCH establishes a no-fly zone in Iraq below the 32nd parallel