1914-1918.
World War I submarines were primarily used to locate and attack surface cargo and warships.
Germany
Germany must surrender its submarines and weapons
2,200,000 Soldiers 97 Warships 40 Submarines.
Germany called there submarines U boats
use of submarines
Britain, France, Germany, Italy and USA all used submarines during WW1
Yes Germany did use tanks during world war 1, they use tanks alone with airplanes, gas masks, and submarines
USSR; US; UK; Germany & Japan.
Germany, they were submarines.
Germany was first to use submarines in World War 1 knwn as " U- 2 ". Later on UK and USA produced their own version. - b sharma.