approach trench
communication trench

At day break on September 9th, we had a communications trench six feet deep leading back to our old position.

Sure enough, he jerked his head toward the opening to a communication trench.

We've got to get to that communication trench down there.

He worked his way along the communication trench, approached the gun from behind, disabled it and killed two of the team.

There were no communication trenches leading to the trench, and several men had already been killed in an attempt to reach it.

A lone tank broke through the gate but had to stop at a communications trench.

German attempts to bomb their way back up communication trenches were also defeated.

The communication trenches allowed the Japanese to move at will among the bunkers and reinforce one another.

In Part 3 they march at night along a road and then through flooded communication trenches to a position in the front line.

One of them found the centre of a nearby communications trench.