How can the principle of mutual support be applied in combined arms operations?

• A. Units provide complementary capabilities to support one another (e.g., infantry supported by artillery).
• B. Units operate independently to speed operations.
• C. Mutual support is only for air defense.
• D. Mutual support is not applicable in ground operations.

Answer: (A)

Mutual support means different arms bring their unique strengths together so they back each other up on the battlefield. In combined arms, no single force handles every problem; instead, infantry might maneuver to close with the enemy while artillery or rockets deliver fire from distance to suppress or destroy threats, armor provides reach and protection, and engineers help overcome obstacles. The point is to synchronize these capabilities so each element enhances the others and weakens the enemy more effectively than any one arm could alone. That is why the statement describing units providing complementary capabilities to support one another—for example, infantry supported by artillery—best captures the idea. Mutual support isn't about operating in isolation, it's not limited to air defense, and it clearly applies to ground operations, where coordination between arms is essential to success.