How did the United States’ decision to join the Allies affect World War I? a. The decision played a minor role because the United States was unable to mobilize troops fast enough to defeat Germany.
b. The decision played a major role because the United States supplied thousands of men and supplies to aid in the Allied victory.
c. The decision played a minor role because the United States sent most of its resources to protect its border with Mexico.
d. The decision played a major role because the United States supplied millions of dollars and political pressure to aid in the Allied victory.