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44 votes
44 votes
What new weapon finally broke the stalemate by negating the defensive advantage of entrenched troops

User Dmitry Pavliv
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1 Answer

12 votes
12 votes
The tank- providing troops with mobile protection and firepower, Many sources imply that Leonardo da Vinci and H.G. Wells in some way foresaw or "invented" the tank
User Subchap
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