2. United States History Standard 15: Analyze the origins and impact of U.S. involvement in World War I – Describe the movement from U.S. neutrality to engagement in World War I, with reference to unrestricted submarine warfare – Explain the domestic impact of World War I and the Great Migration

3. World War I World War I began among European nations in 1914 because of: – Militaries – Militaries—everyone expanded their armies & navies so no one would mess with them – Alliances – Alliances—countries signed treaties to help each other – Imperialism – Imperialism—industrial nations competed for the same colonies – Nationalism – Nationalism—Some people wanted to form new countries

4. Outbreak of World War I On June 28, 1914, Archduke Franz Ferdinand was assassinated by members of a Serbian terrorist group; this led to the outbreak of WWI

5. Europe before the warEurope during the war The Western Front The Eastern Front WW1 is a two-front war because Germany has to fight the Allies on both sides The Allied Powers The Central Powers

6. New, industrial weapons made this an unexpectedly deadly war which neither side seemed able to win total war Both the Allies & Central Powers used total war by converting industrial factories to make war supplies, drafted men to fight, used propaganda, & rationed necessary goods in order to win

7. The USA enters WWI When war was declared in Europe in 1914, President Wilson declared American neutrality; But the USA joined the war in 1917 due to: – German unrestricted submarine warfare & violation of free trade – Zimmerman Telegram to Mexico – Wilson hoped to “make the world safe for democracy” The USA provided badly needed troops & supplies to the Allies

8. Germany used “u-boats” to blockade England; sank many American ships

9. all “The Flag of Liberty represents us all” Which groups are these posters targeting? “Emotional” Wartime Propaganda

10. A Bureaucratic War To coordinate the war effort, 5,000 new gov’t agencies were created – War Industries Board (WIB) oversaw all factories, decided priorities, & fixed prices – Food Admin supplied food to soldiers by appealing to civilians – Fuel Admin rationed coal & oil – RR Admin, War Shipping Board, & War Trade Board helped move resources to troops Imposed “gasless” days & shut down factories for days to divert or conserve fuel Asked for a spirit of self-sacrifice, imposed “meatless” & “wheatless” days & encouraged Americans to plant “victory gardens”

11. New bureaucracies were created to mobilize America for participation in World War 1

12. Workers in the War omen blacks Because America needed more workers, women were able to better- paying jobs & many Southern blacks moved north for industrial jobs

13. How was WW1 a “world war”?