| A | B |
|---|
| Alliance | A formal agreement or treaty between two or more nations to cooperate for specific purposes. |
| Allies (Allied Powers) | The U.S. joined France, Great Britain, and Russia(in 1917) during World War 1 to make up the Allies. |
| Archduke Franz Ferdinand | Heir to the throne of Austria-Hungary; his assassination was the spark that began World War 1 in Europe. |
| Central Powers | Germany, Austria-Hungary, Turkey, and Bulgaria made up the Central Powers during World War 1. |
| Isolationism | A national policy describing America's policy of avoiding political or economics involvement with other nations. |
| League of Nations | A world organization formed in 1920 to promote international cooperation and peace; first proposed by President Woodrow Wilson, although the U.S. U.S. never joined. |
| Lusitania | Name of an ocean liner sunk by a German submarine in 1915 that helped lead to U.S. intervention in World War 1. |
| Neutrality | A state of being neutral, on neither side in a quarrel or fight, especially nonparticipation in war. |
| Treaty of Versailles | Treaty signed at Versailles, France on June 28, 1919 that officially ended World War 1. |
| Trench Warfare | Ditches dug by soldiers for protection from enemy attacks. |
| American Expeditionary Force | Doughboys led by General John "Blackjack" Pershing |
| Why was the US unable to stay neutral? | UTZ: Unrestricted sub warfare, ties to Great Britain, Zimmermann Telegram |
| Zimmermann Telegram | Note sent to Mexico asking them to engage the US in war for territory in an attempt to distract the US from joining the Allied cause. |
| Propaganda | Used by all nations to sway opinions to their point of view |
| Victory Gardens | Encouraged in the US so farmers could send more food to the soldiers. |
| Woodrow Wilson | President of the US who proposed the 14 points |
| 14 Points | Woodrow Wilson's plan for world peace including the League of Nations |
| Point 14 | The most important: League of Nations |
| U-boat | German submarine |
| Mustard gas | First used by the Germans; a deadly colorless and odorless gas |
| reparations | payments for war damages |
| 11-11-11 | Armistice Day (11th hour of the 11th day of the 11th month, 1918) |
| Selective Service | The draft instituted for the first time in the US |
| Dogfight | Fights between two airplanes |
| Tanks | Weapon used for the first time in WWI. |
| Sarajevo | City where Archduke Franz Ferdinand was assassinated |
| "Over There" | Patriotic theme song of the USA |
| Armistice | Cease fire |
| militarism | Build up of military forces and weapons |
| imperialism | Acquisition of colonies |
| alliances | Structure of defense agreements among nations |
| nationalism | extreme patriotism |
| Balance of Power | International system where no country has more power than others |
| stalemate | a situation where neither side can win a victory |
