The US helped France in world war 1 with submarines in the Atlantic.
Sonar was used widely in World War II in an effort to locate enemy submarines. It wasn't as sophisticated as it is today, but it did help. Actual numbers are difficult to come by, but sonar was effective in the successful attacks on several submarines.
No, not really, submarines were first used successfully in the Civil War.
Why don't you just Google "World War 1 Submarines?"
Submarines changed war. They played a big part of World War I and II.
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.
David Bushnell invented the first war submarine
Yes
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