The Future Tactical Truck System (FTTS) was a United States Armed Forces program for which the Operational Requirements Document was drawn up during 2003.

The Association of the United States Army (July 2006) "Army Tactical Wheeled Vehicle Strategy: Meeting Current and Future Needs" pdf stated that the ACTD for FTTS was taking a two phase approach; the first phase involved modeling and simulation (M&S) efforts in which multiple vendors presented concepts for technologies to be incorporated into designs for the UV and MSV variants of FTTS.

Elements of FTTS-UV ACTD were fed in to the ongoing Joint Light Tactical Vehicle (JLTV) program, this the replacement for part of the HMMWV fleet.

The AUSA pdf file previously referenced stated that: "Following approval, [of the JLTV Initial Capabilities Document by the Secretary of Defense], the Future Tactical Truck Systems Advanced Concept Technology Demonstration, the PSD [Platform Systems Demonstration], EMIP [Expedited Modernization Initiative Procedure] and various Office of Naval Research Science and Technology activities will inform the requirements process, thus ensuring requirements are realistic, achievable and relevant to all services.

It has undergone testing by 5th Brigade, 2nd Infantry Division and 14th Engineer Battalion at the Aberdeen Proving Grounds and Fort Lewis, along with Lockheed Martin's design and Armor Holdings' Maneuver Sustainment Vehicle.