Which of the following is the most important criterion for selecting a mortar position?

The most important criterion for selecting a mortar position centers around mission accomplishment because the primary objective of deploying mortars is to effectively fulfill their intended operational role. A mortar’s position must enable it to engage targets accurately and effectively, providing support to the ground forces during combat operations. This involves ensuring that the mortar can deliver fire support in line with the mission parameters, whether that is suppressing enemy positions, providing area fire, or supporting maneuver units.

When assessing a position based on mission accomplishment, consideration must be given to factors such as range, angle of fire, and the ability to achieve the desired effects on the target. This focus on operational effectiveness inevitably influences other aspects of position selection, such as tactical situation, survivability, and surface conditions, as these elements must support the mortar's ability to accomplish its mission successfully.

In essence, mission accomplishment drives the decision-making process, ensuring that the mortar can operate in a manner that directly contributes to the success of the overall military strategy.