Which of the following is NOT one of the four primary components of Marine Corps operations?

The primary components of Marine Corps operations include firepower, protection, and logistics, which are foundational elements that influence how the Corps organizes and executes its missions. Firepower encompasses the effective use of weapons and ammunition to achieve the desired combat results. Protection refers to measures taken to defend personnel and equipment from enemy actions. Logistics is the backbone of operations, ensuring that troops have the necessary supplies, transportation, and maintenance support.

Air support, while critical to modern combat operations, is part of a broader set of operational capabilities and does not constitute one of the four primary components. The emphasis on firepower, protection, and logistics speaks to the core operational philosophy of the Marine Corps, focusing on sustaining effective ground operations through well-defined foundational principles.