U.S. Army Soldiers from the 159th Combat Aviation Brigade

U.S. Army Soldiers from the 159th Combat Aviation Brigade “Thunder” salute during the playing of “Honors to the Nation” at the brigade inactivation ceremony at the 101st Airborne Division parade field, Fort Campbell, Ky., May 7, 2015. The 159th cased its colors after 18 years of service to the 101st Airborne Division and the nation, dating back to the Vietnam era. The brigade inactivated because the Army is restructuring the size of its aviation force. (U.S. Army Photo by Sam Shore/Released)