in World War I the alliance of Germany and Austria-Hungary and other nations allied with them in opposing the Allies heir to the Austria-Hungarian throne, was assassinated in Sarajevo, started World War I

1. Central Powers

in World War I the alliance of Germany and Austria-Hungary and other nations allied with them in opposing the Allies

2. Archduke Franz Ferdinand

heir to the Austria-Hungarian throne, was assassinated in Sarajevo, started World War I.

3. no man's land

A strip of land beween the trenches of opposing armies along the Western Front during WW1

4. trench warfare

Fighting with trenches, mines, and barbed wire. Horrible living conditions, great slaughter, no gains, stalemate, used in WWI.

5. Lusitania

Sunk in 1915 by a German submarine. 139 American killed. After, U.S. considered entering the war. Major factor that led to WWI.

6. Zimmerman Note

Written by Arthur Zimmerman, a german foreign secretary. In this note he had secretly proposed a German- Mexican alliance. He tempted Mexico with the ideas of recovering Texas, Arizona, and New Mexico. The note was intercepted on March 1, 1917 by the U.S. government. This was a major factor that led us into WWI.

7. Eddie Rickenbacker

the most decorated United States combat pilot in World War I (1890-1973)

8. Selective Service Act

This 1917 law provided for the registration of all American men between the ages of 21 and 30 for a military draft.

9. convoy system

the protection of merchant ships from U-boat-German submarine-attacks by having the ships travel in large groups escorted by warships

10. American Expeditionary Force

About 2 million Americans went to France as members of this under General John J. Pershing. Included the regular army, the National Guard, and the new larger force of volunteers and draftees.