1. Industrial Revolution
Summarize the factors that led to the involvement of the United States in World War I and the role of the United States in fighting the war.

2. In the beginning..
At first, the US tried to maintain a neutral role in World War I.

3. Factors to enter WWI
Wartime propaganda (similar to yellow journalism during the Spanish American War)
Traditional sympathies
Commercial ties with loans to Great Britain
Unrestricted submarine warfare declared by the Germans on the high seas waged against neutral ships trading with Britain and France.

4. Factors to enter WWI All of the previously listed factors led to…
President Woodrow Wilson to ask the Congress for a declaration of war to “make the world safe for democracy.”

5. Lusitania, 1915
The sinking of the Lusitania was not the direct cause of the US declaration of war.
It was only one incident in a series of sinking.

6. Zimmerman telegram
The inception of the Zimmerman telegram by the British and its publication by sensationalist press in the US led the American to support going to war.
American troops, known as doughboys, were instrumental in repelling the final assaults of German troops on the western front and breaking the deadlock of trench warfare.

7. Zimmerman telegram

8. Allies v. Central Powers
The Central Powers
Germany
Austria Hungary
Ottoman Empire
Allied Powers
Great Britain
France
United States

9. BIG reasons why American enters WWI

10. WWI (1st trench warfare) between Germany and France

11. Final assaults of German troops on the western front
Trench Warfare

12. Final assaults of German troops on the western front
Doughboys
*This Loony Tunes cartoon was created 15 years after WWI.

13. Final assaults of German troops on the western front

14. End of the War
Central Powers agreed to an armistice with the Allies on the condition that peace negations would be based on Woodrow Wilson’s 14 Points.
President Wilson played a significant role at the peace negations, although many of his 14 Points were ignored by the other nations.

15. Woodrow Wilson’s 14 Points

16. President Wilson and WWI
Helped redraw state borders in Europe so they better reflected:
The actual nations
Groups of people with the same language
Religious heritage
Ethnic heritage
Treaty of Versailles
International peace-keeping organization, the League of Nations

17. Treaty of Versallies
Wilson hoped the Treaty of Versailles would put an end to WWI.
However, the US Senate refused to ratify the treaty because many Senators thought that the League of Nations would compromise Congress’s constitutional right to declare war.
Despite their refusal to join the League, the US continued to be involved in world trade in the 1920s.

18. League of Nations

19. Neutrality Acts
In the 1930s, Congress limited American involvement in world affairs in a series of laws called the Neutrality Acts
Neutrality Acts attempted to keep the US out of the war that was brewing in Europe by addressing what Americans thought were the causes of American involvement in World War I

20. Neutrality Acts

21. In the future…
When the United States finally becomes involved in World War II, the US allied with Great Britain, France and others.
This alliance becomes the basis for the creation of the United Nations after World War II, which replaced the League of Nations with a more effective peace-keeping organization.

22. United Nations