| Term | Definition |
| Triple Alliance | military alliance between Germany,Austria-Hungary,and Italy |
| Triple Entente | military alliance between Great Britain,France,and Russia |
| Militarism | policy of glorifying military power and keeping an army prepared for war |
| Alliances (friendship) | group that protects each other or forms a bigger threat |
| Imperialism | when strong nations attempt to take over other colonies |
| Nationalism | loyal to the nation preferably people who share the same culture and history(ex:black hand-"unity or death") |
| when the black hand(Serbian) shot the royal couple of Austria-Hungary(Archduke Franz Ferdinand and Sophia) | Immediate cause |
| The Great War | other name for WW1 |
| Allies | Great Britain, France Russia,Italy |
| Central powers | Germany,Austria-Hungary, Ottoman Empire |
| poison gas,tank,machine guns,submarines,flame throwers,airplane,grenade launcher, | weapons |
| Schlieffen Plan | Germany's plan to attack and defeat France in the west and then rush east to fight Russia (90% to France and 10% on teh eastern border |
| Trench warfare | a type of combat in which opposing troops fight from trenches facing each other. |
| "No man's land" | Space between the opposing trenches ; open area to machine gun fire |
| Battle of Verdun | Germans launch massive attack on the French both sides lost more than 300,000 (Germans gain 4 miles) |
| Unrestricted submarine warfare | Germany plan to kill anything on their waters : May 7,1915-German sub. sink the Lusitania (128 U.S. citizens died) America enters war |
| Kaiser William 2 | Leader of Germany during WW1 |
| Woodrow Wilson | president of U.S. and author of 14 points |
| George Clemenceau | French leader |
| Armistice | Temporary truce November 11,1918 |
| Treaty of Versailles | ended WW1 responsible for WW2 |
| BRAT: B-Germany blamed for start of war R-had to pay over $33 billion reparations(fines) A-can't have army over 100,000 men(no subs or air force) T- loss territories and colonies | war guilt clause |
| 1.end secret treaties 2.freedom of the seas 3. free trade 4.reduce armies/navies 5. adjust colonial claims 6-13.changing border,creating new nations 14. league of Nations | Fourteen points |
| League of Nation | `group of countries with the goal of setting disputes through negotiation rather than war |
| Zimmerman telegraph | February 1917,telegraph to Mexico to join war against U.S. |
| Balkan Peninsula | |