Across
- 2. a German submarine
- 3. telegram that led to the US joining the war
- 6. treaty that ended the war and took harsh actions against Germany
- 7. partnerships that join together for a common cause
- 8. staying apart from the political interests of other countries
- 9. long, deep ditches dug as protective defenses
Down
- 1. how a country interacts with other countries
- 4. type of warfare that used poisonous substances as weapons
- 5. Archduke's assassination that kick started World War 1
- 7. truce