Mary Lee Stubbs and Stanley Russell Connor, ARMOR-CAVALRY: Part 1; Regular Army and Army Reserve…
“ Few recognized during World War I that the means for returning mobility and shock action to combat was already present in a device destined to revolutionize warfare on the ground and in the air. This was the internal combustion engine, which had made possible the development of the tank and eventually would lead to the mechanized forces that were to assume the old roles of horse cavalry and to loosen the grip of the machine gun on the battlefield. ”
