The Heavy Equipment Transport System (HETS) consists of the M1070 Truck Tractor and the M1000 Heavy Equipment Transporter Semi-trailer. Its mission is to transport, deploy, recover and evacuate combat-loaded main battle tanks and other heavy tracked and wheeled vehicles to and from the battlefield. They can also carry construction materials and other heavy loads. The HETS is air transportable via C-5 and C-17 aircraft.
The M1070A0 is a purpose-designed heavy-duty military vehicle. It is used in conjunction with an M1000 semi-trailer and is designed to transport the M1A1 and M1A2 Abrams main battle tanks. It has good cross-country mobility and can operate over any type of terrain and in remote areas.