Chief of NGB swears in Guardsmen to begin Thunder air show

Army Gen. Frank J. Grass, chief of the National Guard Bureau, thanks a group of 20 Kentucky National Guard Soldiers and Airmen for their service following a mass swearing-in ceremony on the Clark Memorial Bridge in downtown Louisville, Ky., April 18, 2015. Grass administered the oath of enlistment during the ceremony, which kicked off the Thunder Over Louisville air show. (U.S. Air National Guard photo by Maj. Dale Greer)

PHOTO BY: Maj. Dale Greer
VIRIN: 150418-Z-VT419-123.JPG
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