world war 1

5. Strip of land between the trenches of opposing armies along the western front during WW1.
7. a policy of extending a countrys power and influence through diplomacy or military force.
9. patrioticfeeling, principles, or efforts.
10. nickname for American troops in europe.
11. belief or desire of a government or people that a country should maintain a strong military capability and be prepared to use it aggressively to defend or promote national interest.
12. a ship that was sink in World War 1 by German U-boats.
15. The heir to the throne of Austria-Hungary.
17. Alliance:A union or association between three powers or states.
19. Warfare:World War 1 military strategy of defending a position by fighting form the protection of deep ditches.
20. teams of troops,ships,or equipment.
21. helmets a covering for a soldiers head.

1. German Submarines.
2. Powers:World War 1 alliance led by Austria-Hungary and Germany and later joined by Bulgaria and the Ottoman empire.
3. war 1 a military conflict centered on Europe that began in the summer of 1914. The fighting ended in late 1918.
4. guns A rapid firing weapon.
6. the gathering of resources and preparation for war.
8. information given to show something or someone in a based way.
13. During WW1 Woodrow Wilson.
14. bonds U.S bonds sold during WW1 to raise money for loans to the Allies.
16. System:A formal agreement between two or more nations or powers to cooperate and come to anothers defense.
18. the U.S had less than 100 of them in WW1.