What did Germany think would motive Mexico to declare war on The United States A. Using its u-boat to attack ships carrying Mexican citizens
B. The threat of unrestricted submarine warfare if Mexicans refused
C. Keeping the United States out of world war 1
D. Regaining territories in the American southwest region

How did the spanish-american war affect american expansionism? a.) america took control of hawaii, cuba, and the pacific islands of guam. b.) america took possession of cuba and the philippines. c.) america gained control of puerto rico and hawaii. d.) america gained control of cuba, puerto rico, the pacific island of guam and the philippines.