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. The outfitted versions, as the M978 Tanker, has been designed to perform, in a very precise and effective way, the different military logistic needs. Thanks to the loading capacity of over 9,500 liters, the tank installed on the vehicle is able to transport a significant quantity of fuel. The M978 has been effectively used by the U.S. Army in various severe operational areas such as Iraq and Afghanistan.