Colonel Michael M. O'Connor, 386th Expeditionary Maintenance Group commander, left, passes the 386th Expeditionary Maintenance Squadron guidon to Maj. Robert Custer during a change of command ceremony at an undisclosed location in Southwest Asia June 17, 2013. Custer assumed command of the 386th EMXS from Maj. Andrew M. Garcia. (U.S. Air Force photo by Master Sgt. Christopher A. Campbell)