U.S. Army leaders from U.S. Army Training and Doctrine Command test drive a production model Joint Light Tactical Vehicle at Joint Base Langley-Eustis, Va., May 2, 2017. The JLTV is a tactical wheeled vehicle that includes hull designs built to optimize survivability against a full range of blast and ballistic threats. It was designed to bridge the capability gap in protection, performance and payload of the Humvee. (U.S. Air Force photo/Staff Sgt. Teresa J. Cleveland)