What did the First Battle of the Marne force Gemany to do? a. Go all in on unrestricted submarine warfare.
b. Abandon the Schlieffen Plan.
C. Surrender to the Allies and accept the Treaty of Versailles.
X d. Go all in on the Schlieffen Plan.

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.