World War I submarines were primarily used to locate and attack surface cargo and warships.
Submarines changed war. They played a big part of World War I and II.
Yes
Submarines were sometimes referred to as submersibles.
poo they look like tornadoes but they are used in submarines I can only give you info on ww2 and after I was on 5 submarines they had a lot of different types of torpedo's their were long ones 20' and alot of shorter ones type in torpedos in the web search and you'll find all you should need
Yes, German submarines were very effective in both world wars. The Germans built excellent submarines and still do.
2,200,000 Soldiers 97 Warships 40 Submarines.
The US helped France in world war 1 with submarines in the Atlantic.
Steel plates.
326
Atlantic Ocean.
Underseaboats.U-boats