Army Lt. Col. Todd Conyers assumes command of the 1st Battalion 228th Aviation Regiment here by accepting the 1-228 AVN guidon from Brig. Gen. Ken Keen, U.S. Army South commander, June 26 on the Soto Cano Air Base flightline. Colonel Conyers arrives from MacDill Air Force Base, Fla., where he served as an aviation maintenance and joint operations officer. U.S. Air Force photo by Martin Chahin.