U.S. Air Force Col. Bryan Callahan, incoming 435th Air Ground Operations Wing and 435th Air Expeditionary Wing commander, right, renders a salute to Maj. Gen. Randall Reed, Third Air Force commander, during an assumption-of-command ceremony at Ramstein Air Base, Germany, July 9, 2021. During the ceremony, Reed charged Callahan with leading the 435th AGOW and 435th AEW, which are comprised of five groups, 23 squadrons and more than 2,300 personnel across 15 installations in Europe and Africa. The two wings are charged with providing battlefield and expeditionary Airmen to combatant commanders and are capable of responding to humanitarian and contingency operations throughout the world. (U.S. Air Force photo by Senior Airman John R. Wright)