What is the most important criterion involved in selecting a mortar position?

When selecting a mortar position, mission accomplishment is the most critical criterion because it directly addresses the effectiveness of the mortar in supporting the overall objectives of the operation. The mortar must be positioned in such a way that it can deliver effective fire support where and when it is needed, ensuring that it contributes to achieving the desired outcomes of the mission.

Positioning must facilitate a clear line of sight to the target area, allow for the grouping and regulation of fire, and enable rapid response to changes in the tactical situation. Ensuring that the mortar can engage targets precisely in time with the operation's requirements is essential for maximizing the impact and efficiency of the munitions used.

While factors like survivability, tactical situation, and overhead clearance are indeed important in the selection process, they predominantly serve to enhance the mortar's ability to accomplish its primary mission. For example, survivability is significant to protect the crew and equipment from enemy fire, but if the position does not facilitate effective targeting and engagement, it becomes less relevant. Thus, mission accomplishment takes precedence in determining the ideal mortar position.