The document summarizes key events and causes of World War 1. It discusses the Treaty of Versailles which ended the war and created new nations, while punishing Germany. It also describes the League of Nations which was formed to promote peace but which the US did not join. The document outlines reasons the US entered the war including the sinking of the Lusitania and Germany's resumption of unrestricted submarine warfare. Trench warfare is described along with problems soldiers faced and attacks strategies. Nationalism, militarism, imperialism and alliances are identified as underlying causes of the war.

1. WW1 Museum US Why Causes Trenches U.S. in WW1

2. Treaty of Versailles New Nations Created Germany’s punishment League of Nations

3. League of nations An organization of nations established at the end of WW1 to maintain world stability. The United states were not involved.

4. Germany’s Punishment Germany must accept full responsibility for WW1. Took away colonies, coal fields, and areas of Alsave and Lorranie. Greatly reduced Germany’s armed forces. Forced them to pay 33 billion dollars to the allies.

5. New Nations Russia= Finland Latuia, Lithuanra, Estonia, Poland. Austria-Hungry= Austria, Hungry, Czechoslavakia, Yugoslavia. Ottoman Empire= Divided up to be controlled by allies.

6. U.S. In WW1 U.S.A.’s impact Other countries status The war ending

7. Other Countries Status By this time in the war Russia has had a revolution and they decide to drop out of the war. Germany now controls Belgium, Italy, and N. France.

8. The War Ending By October, 1918 German lines are crumbling. IN November the Allies have captured the high ground and Germany surrenders. The 11 th hour, and 11 th day of the 11 th month in 1918 the war ends.

9. U.S.A Impact By July 1918 The United States have 1 million troops in the war. We cut off the German rail lines which supply their troops. We attack through the Argonne forest. It takes us 47 days and 1.2 million soldier but we cut off their supplies.

10. Why the US Entered WW1 Lusitania Unrestricted submarine warfare Zimmerman’s Note

11. Sinking of the Lusitania A German submarine sunk the ship. 1198 passengers were killed, while 128 of them were Americans. President Wilson demanded the Germans to apologize and pay for damages.

12. Unrestricted Submarine Warfare Sussex pledge Germany promised not to sink merchant ships without first warning them and rescuing passengers. By 1917 Germany is defeating Russia on the Eastern front, they want a quick victory on the western front. To do this they use unrestricted submarine warfare. They sank all ships heading towards allied nations .

13. Zimmerman’s Note Zimmerman was a German official he sent a letter to Mexico asking them to attack the USA. In exchange they would get their land back. (Texas, New Mexico, Arizona.)

14. Trench Warfare Trenches in the Night Problems in the Trenches Trench Attacks Reason for Trenches

15. Problem in the Trenches Many problems arose in the trenches. One think was the smell was completely awful Two it was really cold Three there were rats everywhere Four diseases began to spread Five maggots and lice were everywhere Six there were decaying bodies all over

16. Trench Attack At Dawn and dusk were when most of the attacks came. They would hit them with artillery and then go over the top and charge them with many men.

17. Reason for Trenches One main reason they did this for was to cut back on the body counts. Secondly they did this to protect there positions so it would be harder to take over for the enemy.

18. Night Time in the Trenches At night two things would happen one would be supplies were sent in to the remaining soldiers who would stay on the front line. Secondly they would replace some of the soldiers to give them a break from all of the action.

19. Causes for world war 1 Militarism Alliances Imperialism Nationalism

20. Alliances Definition- Forming a partnership with other nations. Central powers- Germany, Australia, Ottoman Empire Allies- Russia, Britain, France, (United states)

21. Militarism There were two reasons why countries built up there militaries. They was peer pressures and the other one was to protect there colonies. They used a mandatory draft to build up there military. 1. Russia had the largest army. 2. Britain had the largest navy. 3. Germany had the best trained army.

22. Imperialism European nations competed for colonies. “ Bigger is better.” Areas of conflict- Africa, Bosnia, Alsace, Lorraine.

23. Nationalism Pan-German- wanted to unite all German speaking people. Pan-Slavic- wanted to unite all Slavic speaking people. Example- Bosnia, 95% spoke the Slavic language, yet they were controlled by a German speaking country, Austria .