150503-Z-EZ686-006 -- Col. Edward Vaughan, director of safety for the National Guard Bureau, gives a presentation to the members of the 127th Wing on the annual Wingman Day at Selfridge Air National Guard Base, Mich., on May 3, 2015. The Annual Wingman Day focuses on reinforcing the wingman concept as the foundation to building resilient Airman. (U.S. Air National Guard photo by MSgt. David Kujawa/Released)