COMMAND FLAG U.S. Air Force Gen. Kevin P. Chilton, outgoing commander, U.S. Strategic Command, passes the command flag to Defense Secretary Robert M. Gates during the U.S. Strategic Command change-of-command ceremony on Offutt Air Force Base, Neb., Jan. 28, 2011. Chilton is retiring and relinquishing command to Air Force Gen. C. Robert Kehler. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 530682-P-FLD07-110.jpg Photo Gallery