LANGLEY AIR FORCE BASE, Va. – Brig. Gen. Mark Barrett, 1st Fighter Wing commander, and Lt. Gen. Gary North, 9th Air Force commander, join others in watching the F-22 Raptor demonstration here Jan. 21. The certification demonstration for Gen. John D.W. Corley, commander of Air Combat Command, is scheduled for Feb. 4. (U.S. Air Force photo/Airman Rebecca Montez)