The use of trench warfare in World War I was a military tactic never seen before in any previous European wars.

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True
True

False

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Answered by GPT-5 mini AI
False.

Trench warfare was not entirely new — field fortifications and trench systems had been used earlier (e.g., extensive earthworks in the American Civil War and various European sieges/ campaigns). What was new in WWI was the scale, depth, and prolonged, industrialized stalemate created by modern firepower.