Describe the role of the following features of the Western Front: 1. Barbed Wire
2. Zig-Zag trenches
3. A rolling barrage of artillery

The role of Barbed Wire , Zig-Zag trenches  and a rolling barrage of artillery are given below:

Explanation:

Barbed Wire is done by troops to stop the movement of the enemies in order to make barrier in their movement. Zig-Zag trenches are system of trenches dug by troops to provide a safe place of shelter from firing of enemy. A rolling barrage of artillery is a massed sustained artillery fire aimed along the enemy line. A barrage is done to suppress enemy movement and actions through that line.

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