| A | B |
|---|
| The assassination of Archduke Ferdinand | This triggers World War I in Europe |
| Isolationism | When a country wants to stay out of fights with other countries |
| Central Powers | Austria-Hungary & Germany |
| Allied Powers | Britain, France, Russia, & Serbia |
| Neutrality | Being "impartial" or not taking sides |
| Zimmerman note | German telegram to Mexico, encouraging attack |
| World War I weapons used for the 1st time | Tanks, submarines, machine guns, trench warfare, poison gas |
| Selective Service Act | This act authorized drafting men for military service |
| Espionage Act | No criticism of US allowed during WWI, afraid of Germans in US |
| Great Migration | When African Americans left the South to find jobs in the North (In war related industry) |
| German submarine attacks | This caused tensions between Germany & U.S. |
| Network of alliances | This caused much of Europe to be drawn into World War I |
