  America Declares War  on Germany, 1917  At 8:30 on the evening
of April 2, 1917, President Wilson appeared before a joint
session of Congress and asked for a declaration of war against
Germany in order to "make the world safe for democracy." On
April 4, Congress granted Wilson's request.   President Wilson
exits a British tank during a warbond drive Washington, DC,
April 1918 In January 1917, Germany renewed its policy of
unrestricted submarine warfare that it had abandoned in 1915
after the sinking of the Lusitania. All ships trading with
Britain, including those of neutral countries such as the United
States would be targets for their submarines and would be sunk
without warning.  In February, the British gave the American
ambassador in London a copy of an intercepted German telegram.
The telegram came from the German Foreign Secretary, Arthur
Zimmermann, to the German ambassador to Mexico. Zimmermann
proposed that in the event of war with the US, Germany and
Mexico would join in an alliance. Germany woul