What was trench warfare like during wwI?

Explanation:

Trench Warfare in WW1

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A form of warfare in which armies conduct attacks on each other from opposition positions in fortified trenches

Trench warfare is a type of fighting where both sides build deep trenches as a defense against the enemy. These trenches can stretch for many miles and make it nearly impossible for one side to advance. During World War I, the western front in France was fought using trench warfare.

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