The use of submarines during World War I resulted in
a. the sinking of passenger liners.
b. a quick end to the war.
c. the poisoning of water supplies.
d. greater support for air attacks.
The use of submarines during World War I resulted in
a. the sinking of passenger liners.
b. a quick end to the war.
c. the poisoning of water supplies.
d. greater support for air attacks.