U.S. Air Force Reserve Col. Denis Heinz, commander of the 489th Bomb Group, presents the 345th Bomb Squadron's guidon to Lt. Col. Brian McClanahan on Oct. 17, 2015 at Dyess Air Force Base, Texas. McClanahan assumes command of the 345th Bomb Squadron, the only B-1 bomber unit in the Air Force Reserve. The 345th Bomb Squadron is assigned to the 489th Bomb Group which falls under the 307th Bomb Wing. The 307th Bomb Wing is the only dual bomber mission wing in the Air Force. (U.S. Air Force photo by Master Sgt. Laura Siebert/Released)