| A | B |
| President William Taft | President that avoided conflict, "substituting dollars for bullets" |
| Teddy Roosevelt | Tough President, "Speak softly and carry a big stick" |
| Woodrow Wilson | President during WWI |
| U.S.S. Maine | After it exploded, the U.S. joined the Spanish American War |
| Lusitania | Shortly after this ship sunk, the U.S. joined WWI |
| Selective Service Act | started to draft, forcing soldiers to join the war |
| National Defense Act | Increased the size of our military in case we went to war |
| Schlieffen Plan | German plan to quickly defeat France and then focus on Russia |
| Self-determination | Allowing a country to decide its own government |
| Sussex Pledge | Germany promised to give warning before sinking passenger ships |
| Nationalism | intense pride in your country |
| Militarism | using a strong army to show off your strength |
| Reparations | Payments a losing country has to make after a war |
| Russia | the country that withdrew from the war because of the Bolshevick Revolution |
| League of Nations | One of Wilson's goals after the war was to create this organization to keep the peace. |