 But the moving chariots showering them with arrows were difficult to hit so they were rendered helpless against these.The role and tactics of war chariots are often compared to tanks in modern warfare but this is disputed with scholars pointing out that chariots were vulnerable and fragile, required a level terrain while tanks are all-terrain vehicles, and thus not suitable for use in the way modern tanks have been used as a physical shock force.Chariots, carts and wagons still had the disadvantage of using more than one horse per transported soldier.