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7 Cards in this Set
- Front
- Back
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more people were killed by _______ than by any other weapon in the war |
artillery fire |
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to protect themselves from artillery, troops began digging ______ |
trenches |
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first used by germans in 1915 |
poison gas |
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allies equiped planes with machine guns to attack the |
german zeppelin fleet |
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battle between 2 airplanes in the air |
dogfights |
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sims proposed merchant ships and troops travel in groups called |
convoys |
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combat pilot with life expectancy of 2 weeks |
doughboys |
