The 40-ton Tank Transporter Truck Trailer M25, dubbed the Dragon Wagon by enthusiasts, was the largest wheeled vehicle fielded by the US Army during WWII. The M25 consisted of the M26 tractor and M15 trailer. Designed to recover disabled tanks and other heavy vehicles from forward areas, the M26 featured a large and heavily armored cab. Field use, however, indicated that this vehicle was not often used in recovery operations during the heat of battle,...