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TOPIC: Use of Underground Sewer Systems.

DISCUSSION: Many towns have sewage systems or underground passages for electric or telephone cables. Some cities also have underground railways or rivers. It is important for both attacker and defender to be aware of and assess the tactical value of such underground systems. If belligerents have difficulties crossing checkpoints, they may decide to go under it via the city's sewer system. This can be a way for belligerents to circumvent checkpoints, until the UN force obtains diagrams or maps of the underground passageways and either closes or blocks them.

LESSON(s):

• Use engineers to emplace mines, booby traps, barbed wire, trip flares, or other obstacles to deter use of the sewer system.

• If necessary, remove manhole covers, lower lights on wires, and maintain a 24-hour watch over the open holes. Use 20-minute shifts to maintain soldier alertness.

• Be prepared to conduct reconnaissance and surveillance of underground facilities.

Back to Chapter 4: Table of Contents

Clearing Multi-story Buildings