Steam Tractors the Power Behind First Motorized Armored Vehicles

Used to haul road trains of supply wagons, steam tractors became the first motorized armored vehicles

An armored wagon for the Fowler armored road train with its rear doors open
An armored wagon for the Fowler armored road train with its rear doors open, showing a light 6-inch howitzer loaded in it. Note one of the wagon's rifle ports on the left side.