What are trenches?

Answer 1

A trench is a hole that is much longer than it is wide, a narrow excavation.

The usual applications of the term are:

- the trenches used as manned fortifications, as in World War II

- deep underwater chasms that typically mark the subduction of oceanic plates

Answer 2

A trench is a hole in the ground; also called a ditch.

Trench warfare was a tactic widely used during World War I, as a means of cover. Soldiers would dig long trenches spanning parallel, across the battlefield. During the fight; opposing forces would advance or retreat from trench to trench.

Trench warfare became obsolete after the invention of the tank.

Answer 3

Military trenches were large dugout areas that were utilized on both sides of the military. Sometimes the trenches went on for hundreds of miles. The trenches were used for defense and cover, and were protected by barbed wire to ward off attacks. The trenches were also used to run communications, food, and supplies to the soldiers.

Answer 4

A long, narrow ditch.