90th MDOS welcomes new commander
Col. Hans Ritschard, 90th Medical Group commander, passes the guidon to Lt. Col. John Modra, 90th Medical Operation Squadron commander, during the 90th MDOS change of command ceremony July 10, 2015, as Master Sgt. Annamarie Forgit, 90th MDG first sergeant, stands in the background in the Fall Hall Community Center on F.E. Warren Air Force Base, Wyo. The ceremony signified the transition of command from Lt. Col. Penny Spaid to Modra. (U.S. Air Force photo by Airman 1st Class Malcolm Mayfield)