728th AMS welcomes new commander Published June 9, 2016 By Tech. Sgt. Caleb Pierce 39th Air Base Wing Public Affairs INCIRLIK AIR BASE, Turkey -- Lt. Col. Nathan Mansfield took command of the 728th Air Mobility Squadron during a change of command ceremony here, June 9. Prior to taking command, Mansfield was the lead observer and trainer on the Joint Staff in Suffolk, Va. A change of command ceremony is a tradition that represents a formal transfer of authority and responsibility from the outgoing commander to the incoming commander.