Submarines changed war. They played a big part of World War I and II.
No, not really, submarines were first used successfully in the Civil War.
Why don't you just Google "World War 1 Submarines?"
Yes, submarines were used by the Confederate Navy in the US Civil War.
World War I submarines were primarily used to locate and attack surface cargo and warships.
Submarines were sometimes referred to as submersibles.
Argentina had diesel-electric submarines while the British had nuclear-powered submarines.
Before the war, people mainly used ships and boats, therefore, the people with the submarine could destroy these ships.
submarines change the behavior of some whales but they do not harm whales
David Bushnell invented the first war submarine
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Yes