1. World War I 1914-1918

3. Early Europe Taking sides… Empires were being built in Europe.

4. Causes of War – Know Your “Isms”… Imperialism Imperialism caused countries were getting nervous over other countries expansion. Imperialism Could this be compared to the United States’ Manifest Destiny? - Alaska and Hawaii? Could this be compared to the United States’ Manifest Destiny? - Alaska and Hawaii? This led to militarism. militarism Can you imagine what it would be like if Canada or Mexico started to build up a huge army? Nationalism Nationalism also led to major problems. Who do you root for in the Olympics? Nationalism

5. More Causes There was also a race (Arms Race) to have the biggest and best Navy between Germany and Britain. Every country wanted to have added protection so they joined an alliance. Alliances before WWI Alliances before WWI

6. Something Bad Happens Uh Oh – A Serbian rebel killed Archduke Francis Ferdinand of Austria-Hungary. How will this impact the alliances? Russia and Serbia Russia and Serbia Germany and Austria-Hungary Germany and Austria-Hungary France and Russia France and Russia Britain and France and Belgium Britain and France and Belgium Japan and Britain Japan and Britain It starts with an issue JUST BETWEEN TWO COUNTRIES!!!

7. Alliances Before WWI Alliances During WWI Russia and Serbia Russia and Serbia Germany and Austria-Hungary Germany and Austria-Hungary France and Russia France and Russia Britain and France and Belgium Britain and France and Belgium Japan and Britain Japan and Britain Causes of War Video Causes of War Video Actually there were a total of 28 nations who were part of the Allied Powers during this war. Actually there were a total of 28 nations who were part of the Allied Powers during this war. Central Powers Allied Powers “Allies” Austria- Hungary Britain GermanyFrance Ottoman Empire Russia BulgariaItaly ?

8. So What is the U.S. doing? We know what Theodore Roosevelt would be doing!! Woodrow Wilson was elected president in 1913. He DID NOT want the United States to be part of this war!! People in America were taking sides (remember we have a lot of immigrants from Europe).

9. Then something bad happens… On May 7,1915 Germany, using one of it’s newly invented submarine, blew up the British passenger ship, Lusitania, killing over 1200 people including 128 Americans! We are DEFINITELY going to war! Right? Wrong! Germany promised not to attack any more passenger ships and America stayed out of the war. Wilson is reelected with the slogan, “He kept us out of war!”

10. Summary Beginnings of war summary. summary How did it all get started?? started Interactive Map Interactive Map

11. Germany Continues On Germany liked the fact that the U.S. was staying neutral. Germany sent notice to the world that they would sink ANY ship, even if it was a passenger ship. Germany knew this would upset the U.S. Germany did not want Britain getting any help – even from the U.S.

12. Germany They knew that the threat of blowing up ships would most likely pull the U.S. into war, so they wanted help. The sent a famous letter known as the Zimmermann Telegram. Zimmermann Telegram Zimmermann Telegram In this message sent by Germany to Mexico, they asked Mexico to attack the U.S. if we joined the war.

13. In return for helping, Mexico would receive the land that they lost to the U.S. during the Mexican-American war (Texas, New Mexico, Arizona). This message was sent in code (look at textbook page 231). Britain intercepted the letter and presented the information to the U.S.

14. In 1917, Germany sank five U.S. merchant ships. President Wilson believed that it was time for the U.S. to join the war. Congress declared war on April 6, 1917.

15. The United States Join the Allies Actually there were a total of 28 nations who were part of the Allied Powers during this war. Actually there were a total of 28 nations who were part of the Allied Powers during this war. Central Powers Allied Powers “Allies” Austria- Hungary Britain GermanyFrance Ottoman Empire Russia BulgariaItaly United States

16. Building up a small army and navy. In order to quickly build up their numbers, the government set up a military draft. It is like a lottery. MEN – ages 21-30 had to sign up. They would be assigned a number. MEN – ages 21-30 had to sign up. They would be assigned a number. Later they realized that they still did not have enough MEN signed up, so they lengthened the age range to 18-45 years old. Later they realized that they still did not have enough MEN signed up, so they lengthened the age range to 18-45 years old. More than 9 million men registered on the first day.

17. Numbers were selected (textbook page 232). Thousands of men were selected. Where are the all going to train? The government had to set up facilities across the country. The government had to set up facilities across the country. The first United States troops arrived in France in June, 1917. We are now a part of World War 1

19. Lesson two Strategies of war video in my documents video