World Wars

4. Style of fighting from ditches in the ground
7. agreements between two or more states for defense and support in case of war.
8. political, economic and military control of weaker countries or societies by stronger countries.
10. service that directed aircraft
11. very toxic gas/vapor that was used as a weapon.
13. boat that can travel underwater
14. bias ideas/opinions spread to influence public opinion for or against a cause
15. firearm designed to fire hundreds of rounds per min

1. german submarine, comes from the german word “unterseeboat”
2. A treaty forcefully signed by Germany officially ending WWI putting restrictions on Germany.
3. belief that a country should maintain strong armed forces to aggressively defend national interests.
5. machine that projects fire
6. device made to protect and cover the face of the wearer from taking in different toxic gases.
9. a military conflict where all of a nation's resources, are mobilized to achieve a complete victory
12. a promise Germany made to the U.S. about safety of the passengers on the submarine