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Understanding World War I Causes and America's Entry

Explore the 4 MAIN causes of WWI, from militarism to nationalism, leading to tensions in Europe. Discover how the U.S. involvement shifted from neutrality. Dive into Woodrow Wilson's speeches and the impact of war on the home front.

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Understanding World War I Causes and America's Entry

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  1. World War I

  2. https://www.brainpop.com/socialstudies/ushistory/worldwari/

  3. Objectives Content: Differentiate between the long term and immediate causes of World War I. Learning: List the 4 MAIN causes of World War I.

  4. Underlying Causes of WWI • There were 4 MAIN causes of WWI. • Militarism- When a country aggressively builds up its military strength

  5. Alliances- • A alliance between two countries that they will help each other in case of war. Many of these alliances became entangled

  6. Imperialism- When strong countries take over smaller, weaker countries in an effort to become more powerful

  7. Nationalism A strong feeling of pride and dedication to one’s country

  8. These four things were happening over a period of time and caused tensions between countries in Europe. These are known as underlying causes http://safeshare.tv/v/ss5696b3e9f375d

  9. What was the immediate cause of the war? The assassination of Archduke Franz Ferdinand He was killed by Gavrilo Princip in Sarajevo Why?

  10. The Archduke was heir to the throne in Austria-Hungary Serbia was a controlled area of Austria-Hungary Gavrilo Princip was a Serbian Nationalist Why would he want to kill the Archduke?

  11. Central Powers The Alliances Allied Powers France United States Russia Belgium British Empire Serbia Bulgaria Austro-Hungarian Empire German Empire Ottoman Empire

  12. Trick to Remember Alliances in WWI FURBBS BAG of “O”’s FURBBS = Allies BAG of “O”s = Central Powers

  13. What is going on here?

  14. Warm Up Read through Document A: Woodrow Wilson’s Speech #1. Answer Question #1 on Guiding Questions.

  15. U.S. Expansionism • Spanish American War ended the U.S. policy of Isolationism (1898) • Result of Spanish American War = the U.S. emerges as a world power

  16. U.S. Expansionism • WWI ended the U.S. policy of avoiding European conflicts (1914-1918) • WWI = the U.S. emerges as a global superpower

  17. American Neutrality Is Over • Up to 1917, the US opposed war. Woodrow Wilson was re-elected as President with the slogan: “He kept us out of war!” • But that was all about to change!

  18. Reasons for America’s Involvement in WWI 4 REASONS US inability to remain neutral- not pick a side United States economic and political ties to Great Britain

  19. Reasons for America’s Involvement in WWI 3. German submarine warfare: In 1915 they sank the Lusitania (1000 people died, 128 were Americans) 4. The Zimmerman Telegram

  20. Mystery reading…

  21. THEY PUBLISHED A WARNING IN THE NEWSPAPER

  22. Zimmerman Telegram • The Zimmerman Telegram – was a secret message from Germany to Mexico that the British intercepted (January 1917). • The message said that if Mexico helped Germany invade and defeat the US, than Germany would help them get back all the land they lost in the Mexican American War (1848) • Americans were angry and wanted to go to war. • Activity time!

  23. What are we going to do now? What are these cartoons saying about Woodrow Wilson’s reaction to the war? Why do you think the American public was pushing Wilson to go to war?

  24. U.S. Entry into WWI Read Document B: Woodrow Wilson’s Speech #2. Answer remaining Guiding Questions.

  25. I have called the Congress into extraordinary session because there are serious, very serious, choices of policy to be made, and made immediately, which it was neither right nor constitutionally permissible that I should assume the responsibility of making. On the 3d of February last I officially laid before you the extraordinary announcement of the Imperial German Government that on and after the 1st day of February it was its purpose to put aside all restraints of law or of humanity and use its submarines to sink every Even hospital ships and ships carrying relief to the sorely bereaved and stricken people of Belgium, though the latter were provided with safe-conduct through the proscribed areas by the German Government itself and were distinguished by unmistakable marks of identity, have been sunk with the same reckless lack of compassion or of principle. 

  26. How is this different from his earlier speech? Who has the power to formally declare war?

  27. America Enters the War April 6, 1917- President Wilson and Congress declare war! More than 2 million Americans entered the military to fight in WWI. http://www.firstworldwar.com/audio/overthere.htm

  28. Homefront • Civilians at home made sacrifices to help with the war effort • War Gardens – personal fruit and vegetable gardens so that more food could be sent to the troops

  29. http://safeshare.tv/v/ss569935ac3c751

  30. Homefront • Bonds – loaning the government money to help pay for the war. • Rationing – using less of what you want so that more materials can be used for the war or sent to the troops. • Propaganda helped encourage support for war effort.

  31. Propaganda

  32. Who is the soldier in the cartoon? Who do the people on the bayonet represent? How does this represent the Germans? How is it an example of propaganda?

  33. Homefront continued • Women work in jobs traditionally held by men – leads to changing a role • Pushes women to get the right to vote • Most countries grant right to vote before WWI is over. • When does the U.S. grant the right to vote?

  34. Objectives Content: Defend why Wilson’s 14 Points were a good solution to WWI. Learning: Describe the changes in warfare during WWI.

  35. GUM Questions!! 1. Why did the war start? 2. How did the US get involved? 3. How did the US change the role of women? 4. Who were the Allied powers? 5. Who were the Central powers?

  36. WWI Details 1914-1918 Actual fighting began in August when Germany invaded Belgium (a neutral country)

  37. Four main fighting fronts: • Western (Britain, France, and Germany) • Eastern (Austria-Hungary, Germany, and Russia) • Balkan (Serbia, Ottoman Empire, and Bulgaria) • Italian (Italy and Austria-Hungary)

  38. New Weapons of WWI • Improved cannons and improved guns (machine guns) • New inventions and destructive weapons • German “U-boats” (submarines) • Tank • Poison Gas • Combat airplanes (end of war)

  39. Machine Guns

  40. WWI Gas Masks

  41. WWI Tanks

  42. WWI Planes

  43. German U-boats "unterseeboot", or undersea boat in English

  44. http://safeshare.tv/v/uzaa_RVwYSs

  45. Trench Warfare WWI introduces Trench Warfare because of new weapons

  46. http://safeshare.tv/v/ss5697d9846467f http://safeshare.tv/v/ss569933d9aa9c8

  47. Trench warfare webquest Website 1: Website 2:

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