May 19, 2017 Air Force-owned C-17s reassigned to Alaska Air National Guard - Active duty and Guard continue to share aircraft for unchanged mission Members of the 176th Wing, Alaska Air National Guard, and the 3rd Wing, U.S. Air Force, commemorated the change of assignment of eight C-17 Globe Master III aircraft based here during a ceremony on Joint Base Elmendorf-Richardson, Alaska, May 17.