3/25/2012 - U.S. Air Force Col. Cheryl Minto, left, 35th Maintenance Group commander, passes the guidon to Maj. Rognald Christensen, 35th Aircraft Maintenance Squadron commander, during a change of command ceremony at Misawa Air Base, Japan, March 26, 2012. The guidon symbolizes the relinquishment of command from the outgoing commander to the incoming commander. Christensen replaced Lt. Col. David Ruth as the 35 AMXS commander. (U.S. Air Force photo by Tech. Sgt. Marie Brown/Released)