The M931 is a military vehicle designed for transporting equipment and personnel. It is part of the M-series of trucks used by the U.S. Army and is known for its durability and off-road capabilities. The vehicle typically features a 5-ton payload capacity, making it suitable for various logistical tasks. This truck is often used in conjunction with other military vehicles, such as the M923 and M925, to support operations in diverse environments. Its design allows for easy maintenance and adaptability, ensuring it can meet the demands of military missions effectively.