What does the Pre-Combat Checklist ensure before a patrol begins?

The Pre-Combat Checklist primarily ensures compliance with the warning order. This document outlines specific instructions and preparations that the patrol must adhere to before commencing their mission. By confirming that all necessary tasks mentioned in the warning order are addressed, the checklist helps ensure that the patrol operates effectively and efficiently, with a clear understanding of their objectives, roles, and the overall plan.

While it is also important for Marines to have completed their training, ensure that proper equipment is packed, and that weapons are cleaned, these aspects are typically included in the broader context of preparing for a mission. However, the main focus of the Pre-Combat Checklist is to verify that all elements outlined in the warning order are in place, which directly impacts the success of the patrol.