Changes

Between 1914 and the spring of 1917, the European nations engaged in a conflict that became known as World War I. While armies battled in Europe, the United States remained neutral. In 1916 Woodrow Wilson was elected President for a second term, largely because of the slogan "He kept us out of war." Events in early 1917 would change that hope.

Between 1914 and the spring of 1917, the European nations engaged in a conflict that became known as World War I. While armies battled in Europe, the United States remained neutral. In 1916 Woodrow Wilson was elected President for a second term, largely because of the slogan "He kept us out of war." Events in early 1917 would change that hope.

Germany’s resumption of submarine attacks on passenger and merchant ships in 1917 led to the sinking of an unarmed French boat, the ''Sussex'', in the English Channel in March 1916, and Wilson had threatened to sever diplomatic relations with Germany unless the German Government refrained from attacking all passenger ships, and allowed the crews of enemy merchant vessels to escape from their ships prior to any attack. On May 4, 1916, the German Government had accepted these terms and conditions in what came to be known as the “Sussex pledge.”

Germany’s resumption of submarine attacks on passenger and merchant [[ship]]s in 1917 led to the sinking of an unarmed French boat, the ''Sussex'', in the English Channel in March 1916, and Wilson had threatened to sever diplomatic relations with Germany unless the German Government refrained from attacking all passenger ships, and allowed the crews of enemy merchant vessels to escape from their ships prior to any attack. On May 4, 1916, the German Government had accepted these terms and conditions in what came to be known as the “Sussex pledge.”

By January 1917, however, the situation in Germany had changed. During a wartime conference that month, representatives from the German navy convinced the military leadership and Kaiser Wilhelm II that a resumption of unrestricted submarine warfare could help defeat Great Britain within five months. German policymakers argued that they could violate the “Sussex pledge,” because the United States could no longer be considered a neutral party after supplying munitions and financial assistance to the Allies. Germany also believed that the United States had jeopardized its neutrality by acquiescing to the Allied blockade of Germany.

By January 1917, however, the situation in Germany had changed. During a wartime conference that month, representatives from the German navy convinced the military leadership and Kaiser Wilhelm II that a resumption of unrestricted submarine warfare could help defeat Great Britain within five months. German policymakers argued that they could violate the “Sussex pledge,” because the United States could no longer be considered a neutral party after supplying munitions and financial assistance to the Allies. Germany also believed that the United States had jeopardized its neutrality by acquiescing to the Allied blockade of Germany.