Which planning document outlines the priorities and objectives for joint fires?

The Joint Fire Support Plan (JFSP) is the correct choice because it specifically serves as a comprehensive document that collates and outlines the priorities and objectives for joint fires in a military operation. The JFSP integrates the various elements of joint fire support, ensuring that all participating units and branches are aligned in their objectives and execution strategies.

This planning document is essential for coordinating the use of direct and indirect fire support to effectively achieve operational objectives. It encompasses various aspects of fire support operations, including coordination and deconfliction procedures, target acquisition strategies, and integration of different fire support assets.

The other options do not provide the same level of focused guidance on joint fires. For example, the Tactical Fire Support Document may address fire support at a tactical level but does not encompass broader joint operations. The Operational Command Directive, while important for overall operational direction, is not specifically designed to address the intricacies of joint fire support. Lastly, the Comprehensive Combat Strategy may offer a broader strategic overview without the detailed planning and prioritization required specifically for joint fires.