1. U.S. Entrance

2. Damaged Morale
Casualties, length of war, and expenses made the war very unpopular.
Desertions and mutinies for both sides
Russia pulls out when Lenin comes to power in 1917
Germany is now free to send all of its troops to the western front

3. Gradual U.S. Entry
Germans had been practicing unrestricted submarine warfare
Sinking U.S. ships with citizens on them
President Wilson declares the U.S. has the right to travel since they are “neutral.”

4. The Lusitania British ship that was sunk in 1915
Germans insist that it had supplies on it
128 Americans killed
Germany agrees to stop sub-warfare
1917- Germany start sub warfare again

5. The Zimmerman Telegram
British intercept a telegram from the German foreign minister to Mexico
Allegedly, it promised Mexico the states of New Mexico, Arizona, and Texas for their support
That is enough for the U.S. and in 1917 they enter the war.

6. Effects of U.S. Entry
Huge morale boost in Europe since Russia left the fields.
Fresh troops and supplies will help put the Allies “over the top.”

7. The End of Fighting
In March of 1918, the Germans launch one final offensive
Advanced 40 miles, but couldn’t handle the counter-attack
William II realizes can’t win and he flees
Revolts and governmental collapse followed in Germany and Austria-Hungary.

8. Armistice
The Fighting officially ended on Nov. 11th at 11 a.m The eleventh hour of the eleventh day of the eleventh month.