1. World War I Unrestricted Submarine Warfare U.S. Entry into the War

2. Unrestricted Submarine Warfare Britain had setup a naval blockade of Germany –Stopped Germany from getting military supplies

3. Unrestricted Submarine Warfare Germany declared the Seas around Britain to be a war zone Sunk any ships bringing war supplies to Britain –Germany had sunk American ships going to Britain

4. Allied Ships Sunk by U-Boats

5. The Lusitania British Passenger ship sunk by Germans on May 7, 1915

6. The Lusitania 128 Americans killed Germany claimed the ship was carrying war supplies and ammunition Caused a great deal of anger in America

7. Sussex Pledge May 1916 Germany pledged to search all ships before firing on them Germany wanted Americans to convince the British to lift the blockade on Germany Germany resumed unrestricted submarine warfare in Jan. 1917

8. United States involvement in the War The Zimmerman NoteThe Zimmerman Note –Feb. 1917 –German ambassador sends telegram to Mexico –Asks Mexico to attack the United States in return Germany will help Mexico retake lands in the American Southwest –British intercept letter and turn it over to Americans

10. Declaration of War Wilson asks Congress to declare war on GermanyWilson asks Congress to declare war on Germany –April 2, 1917 –Congress votes to declare war

11. America Prepares for War Selective Service Act –Drafted soldiers into military service

12. America Prepares for War War Industry Board –Converted factories to produce war related goods

13. America Prepares for War Government sells war bonds Anti-German propaganda