F-16 aircraft assigned to the 8th Fighter Wing, as well as from the 388th Fighter Wing at Hill Air Force Base, Utah, demonstrate an elephant walk formation as they taxi down a runway during an exercise at Kunsan Air Base, Republic of Korea Dec. 2, 2011. The exercise showcased Kunsan AB aircrews' capability to quickly and safely prepare an aircraft for a wartime mission. (U.S. Air Force photo by Staff Sgt. Rasheen Douglas/Released)