Which of the following is a correct reason to set up a Patrol Base?

• A. Break/rest
• B. Re-issue an order
• C. Sustainment
• D. Re-group

Answer: (C)

A Patrol Base is established to sustain the patrol’s combat capability. By setting up a secure, temporary base, the unit can resupply ammunition, water, food, and fuel, perform maintenance on weapons and gear, treat minor medical needs, and reorganize if needed, all without exposing the patrol to continuous movement and risk. This ensures the patrol can continue operations with a higher level of readiness and endurance, which is the essential purpose of using a Patrol Base.

Rest and reorganization can happen as part of operating from a PB, but the defining reason for establishing one is to sustain the force so it can keep moving and fight effectively. The other options don’t capture that sustained, supply-focused purpose.