They were used mainly to sink enemy transport ships.
No, not really, submarines were first used successfully in the Civil War.
it was used to blow up enemy submarines and carry drugs into space
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.
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Both the Union and the Confederate had submarines, but the Confederate used them more often.
periscopes are used for submarines and war tanks
They were used in the first world war in submarines. The are used now also for submarines and also war tanks. The outer coating of the periscope for the submarines were firm and waterproof for protection from the water pressure. As for the war tank the periscope is able to turn 360 degrees.
They were used by submarines to navigate when not in open waters, They were also used by submarines and anti-submarine ships to locate enemy submarines.
submarines were used in WW1 and the weapons used were torpedos and a deck gun.
Revolutionary War 1776.