World War I

4. Country whose actions, including submarine warfare, helped bring the United States into WWI
7. Constitutional amendment that allowed women to vote in national elections
9. Peace agreement that ended World War I and created resentment in Germany
10. The beliefs and attitudes of citizens that were strongly influenced by propaganda during WWI
11. SYSTEMS OF AGREEMENTS BETWEEN COUNTRIES THAT PULLED NATIONS INTO WORLD WAR I
12. Government system that requires citizens to serve in the armed forces when needed
13. A type of fighting where soldiers battled from long, dug-out trenches
14. The movement and result of women gaining the right to vote in the United States

1. A German message that revealed a plan involving Mexico and increased U.S. support for war
2. German attacks on civilian and trade ships that increased U.S. anger and support for war
3. A global conflict triggered by alliances after the assassination of Archduke Franz Ferdinand
5. Network of agreements that turned a regional conflict into a world war
6. Law requiring men to register so the government could draft soldiers for war
8. His assassination sparked the chain of events leading to World War I
10. Information used during World War I to shape public opinion and build support for the war