What is required for planning in every exercise according to AR 5-11?

The correct choice highlights the comprehensive and structured approach mandated by AR 5-11 for planning exercises. According to this regulation, effective planning encompasses several critical phases: Concept Development, Initial Planning, Main Planning, Final Planning, and MSEL (Master Scenario Events List) Work session(s). Each of these phases serves a specific purpose in creating a cohesive and well-organized exercise.

Concept Development involves establishing the foundational ideas and objectives of the exercise, where clear goals are defined. Initial Planning moves forward by determining the resources, timelines, and constraints that might impact the exercise. The Main Planning phase builds upon this foundation, detailing the logistics, roles, and procedures that facilitate the exercise. The Final Planning phase ensures all details are refined and finalized, preparing everything for execution. Finally, the MSEL Work sessions involve the creation of the scenario events that will guide the exercise, ensuring it aligns with the objectives set forth in earlier phases.

Thus, the requirement for these comprehensive phases ensures that planning is thorough, systematic, and capable of addressing all necessary facets of the exercise, fostering a successful implementation.