U.S. Marine Corps Gen. James. N. Mattis arrives at the Joint Forces/Transformation Command, change of command, Nov. 9, 2007. Mattis replaced U.S. Air Force Gen. Lance Smith at the ceremony held onboard the nuclear-powered aircraft carrier USS George Washington. U.S. Marine Corps Gen. James. N. Mattis arrives at the Joint Forces/Transformation Command, change of command, Nov. 9, 2007. Mattis replaced U.S. Air Force Gen. Lance Smith at the ceremony held onboard the nuclear-powered aircraft carrier USS George Washington. SHARE: Download: Full Size (1.17 MB) Tags: Photo Essays Credit: VIRIN: 706608-B-NJP54-456.jpg Photo Gallery