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Poison Gas; Gas Masks

- Various gases caused choking, blinding, or severe skin blisters

- Gas masks protected soldiers from Gas

- Gas was sent by missile into trenches, killing or disabling troops

Airplanes

- One or two seat propeller plane equipped with machines gun

- At first mainly used for observation

- Later, individual combat used planes

Automatic Machine Gun

- Mounted gun that fires rapidly

- Made it possible for few gunners to mow down waves of soldiers

- Created a stalemate by making it difficult to advance through no man’s land

Tanks

- Armored vehicle that travels on a track allowing it to cross many types of land

- Protected advancing troops as they broke through enemy lines

- Early tanks were not often used because they were slow and clumsy

Submarines

- Underwater ship that can launch torpedoes, or guided underwater bombs

- Used by Germans to destroy Allied shipping

- U-boat attacks helped bring US into war

WWI Technology

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