Across
- 1. Illegal war materials provided by a neutral nation to a belligerent
- 4. The telegraph Germany sent to Mexico to invite them to fight the US
- 6. The treaty made by the Big Four to put all the blame on Germany
- 8. The mindblowing invention that changed the whole war
- 9. A huge, useless airplane
- 10. Posters and ads encouraging people to join and support the war in all countries
Down
- 2. The group that planned to assassinate Franz Ferdinand
- 3. Empire building
- 5. The US ship that Germany sank with their U-boats
- 7. The month, day, and time the war ended