a. that a defeat of Russia would lead to a German victory in the war
b. that the Gallipoli campaign would weaken the forces on the Western Front
c. that unrestricted submarine warfare would defeat the United States
d. that their blockade would defeat Great Britain before U.S. troops arrived
b. that the Gallipoli campaign would weaken the forces on the Western Front
c. that unrestricted submarine warfare would defeat the United States
d. that their blockade would defeat Great Britain before U.S. troops arrived