U.S. Army Gen. Frank J. Grass, chief of the National Guard Bureau, speaks to Soldiers and Airmen during a town hall at the 158th Fighter Wing, Vermont Air National Guard, Burlington International Airport, South Burlington, Vt., May 2, 2015. While visiting the Vermont National Guard, Grass met with senior leadership, recognized Airmen and administered the oath of enlistment during a reenlistment ceremony. (U.S. Air Force Photo by Senior Airmen Jonathon Alderman)