Across
- 4. when your government forces you into the military
- 6. an agreement to stop fighting
- 7. an agreement to defend another country
- 9. not choosing a side
- 10. a large vehicle with tracks to cross trenches
- 11. building up of one's military
Down
- 1. a period of many new inventions
- 2. a warship that travels underwater
- 3. a long, deep ditch where armies fought from
- 5. a formal written agreement between countries
- 8. when a stronger country takes over a weaker country
- 9. a belief that your country is better than others