Col. John LaMontagne, 379th Expeditionary Operations Group commander, passes the 37th Expeditionary Bomb Squadron guidon to Lt. Col. Joseph Sheffield as he assumes command of the 37th EBS during a change of command ceremony at a forward operating location in Southwest Asia, April 4, 2014. More than 350 Airmen and a portion of Ellsworth's B-1 fleet continue to provide multi-role airpower in support of U.S. and coalition forces in that region of the world. (U.S. Air Force Photo by Master Sgt. David Miller/Released)