Submarines are not barbaric weapons. However, some tactics, such as unwarned attacks were considered by some during WWII as barbaric. As with most things, the thing is not bad, but how it is applied can be.
They had no weapons.
They though that barbaric was a something that ate human beings.They considered monstours has a big giant with different characteristics
The weapon described is a depth charge.
One of the reasons he was "barbaric" is because he was a brilliant general who destroyed the crowns of Europe and his blood was not noble blood he was "barbaric" because the crowns were scared of him in basic reality
The military were interested in it as a weapon. and as a source of power in submarines.
The king's ideas are somewhat uncivilized.
There are a few qualities in today's society that are considered barbaric or monstrous. Namely, the desire to prey upon children, and the desire to murder are both considered extremely taboo.
Torpedoes were the main weapon. The submarines also had a naval gun that they would use on unarmed ships and many had machine gun mounts as well.
they used U-boats, which are German submarines.
The sea itself could be considered her weapon, for she controlled it - with that, she needed no weapon.
Submarines
Spears, arrows, guns, flintlock, tanks, submarines, flame throwers to name a few.