Which of the following is NOT a mission variable?

The variable that is not considered a mission variable is related to "Weapon Types." In military planning and operations, mission variables refer to a set of factors that significantly impact the planning and execution of a military operation. The recognized mission variables typically include terrain and weather, time available, and troops and support available, as these directly influence operational capabilities and decision-making.

Terrain and weather affect visibility, movement, and environmental conditions that can enhance or hinder mission effectiveness. Time available is crucial for planning to ensure that operations are executed within the necessary timeframe to achieve objectives. Troops and support available encompass the personnel, resources, and logistics needed for mission success.

While weapon types are essential considerations in terms of operational capabilities, they are not categorized as mission variables, as they do not directly impact the planning factors influencing the overall operation's approach and execution. Weapon types come into play once the mission variables have been assessed, but they do not shape the mission’s strategic context like the other three factors do.