Pit trap

A Pit trap is a trap designed to trip walkers and hinder troops.

Usually used in conjunction with walker barriers, pit traps are large sections of collapsable road or land designed to be automatically or remotely triggered to collapse as to trip walkers. When deployed against ground troops, the pit is often deep enough that defenders can simply ring the pit and execute trapped troops without fear of them climbing out.

Text and facts from the “Pit trap” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.