Features 435 ACOMG welcomes new commander July 22, 2022 U.S. Air Force Col. Timothy J. Ritchie, outgoing 435th Air and Space Communications Group commander, right, is presented with The Legion of Merit by Col. Bryan T. Callahan, 435th Air Ground Operations Wing and 435th Air Expeditionary Wing commander, during a change of command ceremony at Ramstein Air Base, Germany, July 8, 2022. (U.S. Air Force photo by Senior Airman John R. Wright) U.S. Air Force Col. Bryan T. Callahan, 435th Air Ground Operations Wing and 435th Air Expeditionary Wing commander, left, presents the guidon to Col. John J. Riester, incoming 435th Air and Space Communications Group commander, during a change of command ceremony at Ramstein Air Base, Germany, July 8, 2022. (U.S. Air Force photo by Senior Airman John R. Wright) U.S. Air Force Col. Bryan T. Callahan, 435th Air Ground Operations Wing and 435th Air Expeditionary Wing commander, presents Col. Timothy J. Ritchie, outgoing 435th Air and Space Communications Group commander, with The Legion of Merit for his services commanding the 435 ACOMG during a change of command ceremony at Ramstein Air Base, Germany, July 8, 2022. (U.S. Air Force photo by Senior Airman John R. Wright) « Previous × Next » Share Tweet