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When in a trench a soldier is basically dug into the earth itself. This provides a very stable, protective, and defensible line. These defenses were often bolstered with fortified structures made of concrete and steel. Considering that no-man's land (the areas in between opposing trench lines) was often difficult to cross considering the massive amounts of barbered wire used and the advent of the machine-gun, attacking infantry and cavalry formations (as WWI until later on pre-dated armor) were easy targets for defending infantry formations. The barbed wire slowed formations down and made them also easy targets for artillery.

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15y ago

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