In defense planning, who ensures that sector boundaries align with adjacent units' sectors?

• A. Platoon Leader
• B. Squad Leader
• C. Company Commander
• D. Mortar Team Leader

Answer: (B)

In defense planning, seamless coverage comes from boundaries that fit together without gaps or overlaps, so every unit can support its neighbor. The Squad Leader is the person closest to the ground where those boundaries are drawn and maintained. They own the sector they’re responsible for and must coordinate with adjacent squads to ensure the left and right limits line up. This involves reviewing the map, confirming fields of fire and observation extend to the neighboring boundary, and adjusting plans on the ground as needed to keep a continuous line of defense. While the platoon leader sets the overall scheme and the company commander coordinates at a higher level, the actual alignment of adjacent sector boundaries happens at the squad level because that’s where the boundary is executed and kept current during planning and execution. Mortar Team Leaders focus on indirect fire within their own area, not on aligning sector boundaries with neighbors.