High Quality Content by WIKIPEDIA articles! The Joint Light Tactical Vehicle (JLTV) is a U.S. Army, USSOCOM, and U.S. Marine Corps program to replace the current Humvee with a family of more survivable vehicles and greater payload. In particular, the Humvee was not designed to be an armored combat and scout vehicle but has been employed as one, whereas the JLTV will be designed from the ground up for this role.