Poison Gas, Machine Guns and planes to say the least.
what are the three dangerous weapons used in world war1?
This is some of the weapons used in world war 1:hand gunmachine guntanksair craftbattle shipssubmarinesflame throwergrenadesgas/ gas maskbayonet/ knifeThe list goes on!
hump
Trench Warfare.
3584
Doughboy.
hell he did something
Commonwealth.
Kaiser Wilhelm II
Well, I am not exactly sure. But, the weapons in WW1 didn't really help end the war quicker; it only increased how many people died.
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In 1917