In this quotation, President Wilson acknowledged the need for a change in U. S. policy. What caused this policy shift? The quotation is from President Woodrow Wilson's speech to Congress on April 2, 1917. A. Germany invaded the neutral nation of Belgium during a war.
B. Germany instituted a policy of unrestricted submarine warfare.
C. Germany attacked U. S. military vessels sailing in European waters.
D. Germany began launching attacks on British civilian targets.