Airman 1st Class Andrew Des Marias, a Dover Air Force Base Honor Guard member, stands at the position of "port arms" prior to the start of the 436th Maintenance Group change of command ceremony, May 24, 2016, at Dover AFB, Del. During the ceremony, Col. Chuck Nesemeier relinquished command of the 436th MXG to Col. Tyler Knack. (U.S. Air Force photo/Roland Balik)