| A | B |
| Date of WWI | 1914-1918 |
| Year the US enters WWI | 1917 |
| How did America's entry into WWI change the war? | Tipped the balance of power for the Allies |
| Reasons US enters WWI | unrestricted submarine warfare, sinking of the Lusitania, Zimmerman Note |
| Act that brought US into WWI | Zimmerman Note |
| Secret telegram sent to Mexico from Germany | Zimmerman Note |
| States that Germany promised to return to Mexico in the Zimmerman Note | Texas, New Mexico, and Arizona |
| British passenger ship that was sunk by German uboats | Lusitania |
| German submarines were known as | uboats |
| Nov. 11, 1918 at 11:00 a.m.Germans sign a temporary stop to fighting | Armistice Day |
| Allies, Big 4 | Great Britain, Italy, France, and USA |
| 1917 the Russian tsar is overthrown | Bolshevik Revolution |
| Leader of the Bolsheviks, seized power in Russia | Vladimir Lenin |
| World Police after WWI | League of Nations |
| Treaty that ended WWI | Treaty of Versailles |
| Who lost WWI? | Central Powers |
| Germany, Austria-Hungary, Bulgaria, and Ottoman Empire | Central Powers |
| Wilson's 14 Points | Establishment of League of Nations, world police after WWI |
| Most of the battles were fought in ____ | France |
| American Commander in Europe | General John J. Pershing |
| American soldiers were known as ___ | Doughboys |
| weapons and warfare used in WWI | tanks, uboats, mustard gas, trenches |
| Reason WWI started in Europe | Assassination of the Archduke Franz Ferdinand |
| Reasons why US did not join the League of Nations | Isolationism |
| US President during WWI | Woodrow Wilson |
| War to End All Wars | World War I |
| Causes for WWI | Militarism, alliances, imperialism, and nationalism |