Across
- 6. England, Russia, France, Serbia, united states, Portugal, Italy.
- 7. Long ditches dug in the ground for soldiers to shoot from and hide in.
- 9. Armed escort ships traveling with troop transport ships to protect the transport
- 10. German submarine that attacked ship convoys
- 12. An organization of nations to help keep peace around the world (Congress would not approve the U.S. joining even after Wilson created it.)
Down
- 1. World War 1, the war to end all wars.
- 2. Total control of a government by a central power
- 3. Letter that Germany sent to Mexico asking them to invade and declare war on the USA
- 4. Germany, Austria, Hungary, Turkey, Bulgaria.
- 5. Large British passenger ship that the Germans sank in 1915; over 1,000 livers were lost
- 8. The policy of opposing involvement of ones country with international alliances or
- 11. Not participating in a war on either side.