55th OG COC
U.S Air Force Col. Mohan Krishna accepts the guidon from U.S. Air Force Col. Gregory Guillot, 55th Wing commander, as he assumes command of the 55th Operations Group. The 55th OG is the largest operations group in the Air Force with 3,200 Airmen in 12 squadrons and one detachment, operating 33 aircraft. (U.S. Air Force photo by Josh Plueger/Released)