Out of the 12 principles of joint operations, which one is focused on maintaining legal and moral authority?

• A. Restraint
• B. Perseverance
• C. Legitimacy
• D. Unity of Effort

Answer: (C)

Legitimacy is the principle that centers on maintaining legal and moral authority for operations. It means actions are grounded in law—international and domestic—and align with ethical standards and the rules of engagement. When legitimacy is upheld, the operation earns acceptance and support from the local population, the host-nation government, and the international community. That acceptance helps reduce resistance, protects civilians, and improves cooperation with civilian agencies and partners, making it easier to achieve objectives.

Other principles support how the mission is conducted but aren’t about authority and moral standing in the same way. Restraint focuses on using force proportionally and only as needed. Perseverance is about sustaining effort over time despite challenges. Unity of Effort emphasizes coordinating across multiple organizations to present a single, coordinated action.