During World War 2, it is reported that over 2,000 variants of Japanese Submarines were used during World War 2. Out of this, it is estimated that 10,000s were likely to be used during WW2.
USSR; US; UK; Germany & Japan.
Yes, they did.
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2,200,000 Soldiers 97 Warships 40 Submarines.
Why don't you just Google "World War 1 Submarines?"
The British lost 76 submarines during WWII.
1, 200,000 Soldiers 30 Warships 11 Submarines.
Yes, many submarines were used in WW1 by most of the major combatants.
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759
eighty five
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