History quiz

What factor changed Woodrow opinion about entering world war?

The Zimmermann Telegram changed Woodrow Wilson' opinion about entering World War I. The telegram, sent by German Foreign Secretary Arthur Zimmermann to the German Ambassador in Mexico, revealed a secret alliance between Germany and Mexico. In the telegram, Germany promised to support Mexico in a war against the United States if the United States declared war on Germany. This revelation shocked and angered Wilson, who had previously been reluctant to enter the war. He saw the telegram as a clear sign that Germany was not interested in peace and that the United States could no longer stay neutral. Wilson urged Congress to declare war on Germany, which it did on April 6, 1917.