U.S. Air Force Col. James Johnson, Commander of the 133rd Airlift Wing, introduces Mr. Dave Roever, a Navy Vietnam Veteran, during resiliency training in St. Paul, Minn., Dec. 15, 2014. Roever triumphed over both physical and mental obstacles in his life and is sharing his experience with Airmen from the 133rd Airlift Wing. (U.S. Air National Guard photo by Staff Sgt. Austen Adriaens/Released)