Name two types of rehearsals used before operations and their purposes.

• A. Map rehearsal (verify positions and tasks on a map) and full-dress/combined rehearsal (practice in a near-live setting to validate timing and coordination).
• B. Dry run and wet run.
• C. Tabletop exercise and field exercise.
• D. Briefer and debrief.

Answer: (A)

The essential idea is to verify both what is planned and how it will be executed before an operation starts. A map rehearsal focuses on confirming positions, routes, and tasks on a map. By stepping through the plan in a map view, everyone can see who occupies each location, what each unit is responsible for, and the order of actions. This helps reveal misalignments, gaps, or conflicts in the plan without moving any troops, so the team can fix the details early.

A full-dress or combined rehearsal takes it a step further by running the plan in a near-live setting with actual equipment and personnel. This tests timing, movement, and inter-unit coordination under realistic conditions, including communications and sequence dependencies. It shows how the plan performs in practice and where adjustments are needed to synchronize actions.

Using both types ensures the team first validates the plan on paper and with clear roles, then validates the execution and timing in a realistic rehearsal, reducing surprises during the real operation.

The other options don’t fit as tightly because they describe different kinds of exercises or activities: dry/wet runs are less standardized terms for pre-operation rehearsals, tabletop and field exercises are broader or later-stage exercises, and briefer/debrief refer to pre-mission and post-mission information, not two specific pre-operation rehearsal types.