Which of the following is not a principle of fire support?

• A. Timely and responsive
• B. Use the most destructive means available
• C. Economy of force
• D. Unity of command

Answer: (B)

In fire support, the focus is on delivering the right effect at the right time with efficient use of resources and clear coordination. The idea is to achieve the objective with the minimum force necessary, not simply to unleash the most powerful weapons available. That’s why “use the most destructive means available” isn’t a principle here—it runs counter to economy of force, which emphasizes using only as much firepower as needed and preserving capability for future actions.

Timely and responsive fires ensure you hit the target at the moment it will be most effective, maximizing impact. Unity of command guarantees one clear authority coordinating all fires to prevent confusion and fratricide, ensuring fires are synchronized with the larger operation. Economy of force ties it together by encouraging efficient use of ammunition and assets, so resources aren’t wasted on unnecessary destruction.

So, the statement about using the most destructive means conflicts with how fire support is managed to achieve the mission efficiently, safely, and cohesively.