The document summarizes some of the key causes of World War 1, including imperialism, nationalism, militarism, and alliances. It also discusses trench warfare and aspects of life in the trenches like mud, rats, disease, and more. Additionally, the summary outlines reasons for US entry into the war like the sinking of the Lusitania and issues with German submarine warfare. It concludes with details on the Treaty of Versailles after World War 1 ended.

2. Causes of World War 1 imperialism Fighting for colonies Nationalism Pride in your country Militarism Building up of the military . Alliances Forming partnership with other nations .

3. -To protect their positions & cut down on losses both dug trenches -At night supplies were brought in & scout were sent out -At dusk attacks came: hit them with artillery & then go over tops -Had to go through rough things such as barbwire, machine guns, craters -Problems in trenches: mud, rats, smell, body rot, cold, staying dry, maggots, lice, disease Trench Warfare

4. Nationalism -Pan German -United all German speaking people. -Pan Slavic -Untie all Slavic speaking people. -Example: Bosnia-95% speak Slavic language yet controlled by a German speaking Austria

5. Imperialism -European nations competing for colonies -”Bigger is better” -Area’s of conflict: Africa, Bosnia, Alsace, Lorraine

6. Militarism -Militarism- Building up the military -Military was built up for 2 reasons 1.To protect there colonies 2.Peer Pressure -They used a mandatory draft to accomplish this. -Russia had the largest army, Germany the best trained Britain had the largest navy

7. Alliances -Alliances- Forming partnerships with other nations -Central Power: Germany, Austria, Ottoman Empire -Allies: Britain, France, Russia, (United States)

8. Why the U.S Entered WW1 1.Sinking of the Lusitania -It was a passenger ship that was secretly carrying ammunitions. -A German submarine sunk the ship. 1,198 passengers died(128 were Americans). -President Wilson demanded that the Germans apologize and pay for the damages.

9. Why the U.S Entered WW1 2.Unrestriced 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. --Sinking ALL ships headed toward Allies Nations

10. Why the U.S Entered WW1 3.Zimmerman Note -Zimmerman was a German official -He sent a letter to Mexico asking them to attack the U.S -In exchange he promised that Germany would aid them in retrieving some of the land that we took from them.

11. U.S In WWI -General Pershing led the U.S Troops -By 1917 Germany controlled: Belgium, Italy, and N. France -1918 Russia has a revolution and they drop out of the war. -Now Germany can concentrate on the western front. -By July, 1918 the U.S have 1 million troops in the war -We cut of the German rail lines which supply their troops. -We attack through the Argonne Forest. It takes us 47 days and 1.2 million soldiers but we cut of their supply -By October, 1918 German lines are crumbling -In November the Allies have captured the high ground and Germany surrenders -The 11 th hour the 11 th day of the 11 th month in 1918 the war ends.

12. Treat of Versailles 1.New Nations created -Russia=Finland, Latuia, Lithuanian, Estonia and Poland -Austria-Hungary= Austria, Hungary, Czechosovakia, Yogoslavia -Ottoman Empire=Divided up to be controlled by the Allies Map p. 440 2.Germany’s Punishment -Germany must accept full responsibility -Took away their colonies, coal field, and the areas of Alsace and Lorraine -Greatly reduced Germanys armed forces -Forced them to pay $33 billion to the Allies -They were only able to pay 4.5 billion 3.Created league of Nations -An organization of nations established at the end of WW1 to maintain world Stability

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