3/4/2012 - Col. Donald Robison, 931st Air Refueling Group Deputy Commander for Maintenance, receives eagle insignia from his wife, Sarah Robison and Col. William H. Mason, Commander, 931st ARG, during a promotion ceremony March 3. Robison is responsible for more than 400 maintainers and support staff assigned to the 931st ARG. (Photo by Tech. Sgt. Brannen Parrish)