Define a center of gravity in military doctrine.

• A. The location of a unit's base of operations
• B. The enemy's most vulnerable point
• C. The source of power that provides the enemy the ability to win; its loss or denial would degrade the enemy’s ability to fight
• D. The strongest defensive position on the battlefield

Answer: (C)

In military doctrine, a center of gravity is the source of power that enables the enemy to win; its loss or denial would degrade the enemy’s ability to fight. This means the focus is on what truly sustains their strength and effectiveness—often a critical capability, resource, or leadership element—rather than a mere place or a single weakness. Attacking or disrupting that source produces the greatest impact on the enemy’s overall capacity to wage war, because it undermines the core means by which they project power and stay in the fight.

That’s why this definition fits best: it emphasizes the essential capability the enemy relies on to operate and win, and why neutralizing it would erode their effectiveness. A base of operations, while important, is a location or asset rather than the fundamental enabler of the enemy’s power. The most vulnerable point highlights a weakness, not the sustained source of strength. The strongest defensive position is a tactical feature, not the enduring power source that drives the enemy’s ability to fight.