Lt. Col. Jack Murphy, commander, 2nd Squadron, 17th Cavalry Regiment, 101st Combat Aviation Brigade, 101st Airborne Division (Air Assault), signs paperwork to transfer an OH-58D Kiowa Warrior helicopter at Don F. Pratt museum, Fort Campbell, Ky., April 22, 2015. The Kiowa was transferred to the museum to go on display as the Kiowa Warrior is being retired from the Army's inventory. (U.S. Army photo by Sgt. Duncan Brennan, 101st CAB Public Affairs)