What written format is primarily used for communicating operational plans?

The primary written format used for communicating operational plans is the operations order, commonly referred to as an OPORD. This document serves as a comprehensive directive that provides detailed guidance to subordinate units on the execution of operations. It typically includes essential information such as the mission, situation, execution, sustainment, and command and signal aspects of the operation.

OPORDs are designed to ensure that all involved parties have a clear understanding of the operational intent and the tasks assigned, which is vital for effective coordination and execution on the battlefield. They help streamline communication between various echelons and ensure that every unit is aligned towards a common objective.

In contrast to the OPORD, other formats such as FRAGORDs (fragmentary orders) are used to update or modify an existing order, while WARNORDs (warning orders) serve to alert units to upcoming operations and provide preliminary information to prepare them. MORDs (movement orders) are less common and typically pertain to specific transportation or movement directives rather than comprehensive operational planning. Therefore, the OPORD stands out as the fundamental document for operational plans.