When war raged through Europe in the summer of 1914, the American public wanted nothing to do with it. Not our war, they said. President Woodrow Wilson agreed. He pledged neutrality for the United States. But over the next few years, three incidents turned public option away from isolationism to one of wanting to take action against Germany and its allies. First was when a German submarine torpedoed the British-owned passenger liner Lusitania without warning, killing 1,2,00 passengers, including 128 Americans. Second, a German submarine sank an Italian liner without warning, killing 272 people, including 27 Americans. The final straw was the Zimmermann Telegram, a 1917 coded diplomatic proposal from the German Empire for Mexico to join in a military alliance in the event the United States entered the war against Germany. The telegram's main purpose was to make the Mexican government declare war on the U.S., which would have tied down U.S. forces and slowed the export of U.S. arms to...
