Which of the following is a principle objective of the MACCS?

The principle objective of the Marine Air Command and Control System (MACCS) is to disseminate common situational awareness. This is crucial in any military operation, particularly within a multi-faceted airspace where various assets, units, and operations are involved. By sharing and maintaining a consistent understanding of the dynamic battlefield environment, MACCS allows for better coordination, decision-making, and execution of missions.

This dissemination involves sharing real-time information about friendly and enemy forces, airspace restrictions, and environmental factors. Having a shared situational awareness helps to enhance collaboration among different units and makes it easier to anticipate and respond to developing situations in combat environments.

The other options, while relevant to aviation operations, do not encapsulate the primary goal of the MACCS. Controls for ground-based air defense, conducting close air support missions, and providing aviation advisory support are more specific tasks that support the overall function of situational awareness but do not reflect its overarching principle objective.