The whole point of calling it a tank was so that it wouldn't sound like a new weapon. If German spies wondered what the new tracked vehicle beng built was they would think 'oh it's a water tank and the troops at the front need a vehicle to deliver water over rough ground'.
Calling it a land battleship or an armoued dreadnought kind of gives it away.
Calling it a land battleship or an armoued dreadnought kind of gives it away.