The acronym HEMTT (Heavy Expanded Mobility Tactical Truck) identifies a range eight-wheel drive off-road capable heavy truck, produced from the mid-80s for the United States Army. Thanks to its features, the HEMTT is able to guarantee a great off-road mobility and significant transportation performance. It has become the real “workhorse” of the Army capable of carrying ammunition and equipment in a very effective way. In a lot of conflicts, as in Iraq and Afghanistan, it has been often modified by the field workshops, on the specific requirements of the crews, in order to be more and more effective in the hard operating environments, Furthermore some HEMTT versions have been modified to be used in escort and convoys protection duties. Some additional protections and defensive weapons have been add on.