Submarines fought in both WW1 and WW2.
They're german submarines, used in world war 1 and world war 2
Submarines.
The existence of submarines forced other countries to develop anti-submarine weapons and detection systems.
Underseaboats.
Yes, many submarines were used in WW1 by most of the major combatants.
No there were no tanks planes OR submarines in ww1. My friend Dennis ate them all.
machine guns, submarines and poisen gas
Most definitely! AE2 was the First ANZAC!
"Guerre de Course", Merchant Ship sinking.
Britain, France, Germany, Italy and USA all used submarines during WW1
submarines were used in WW1 and the weapons used were torpedos and a deck gun.