Define mobility kill and mobility denial in survivability context.

• A. Mobility kill disables vehicle movement or slows it drastically; mobility denial blocks or restricts movement through obstacles, barriers, or terrain.
• B. Mobility kill means destroying the entire fleet; mobility denial means blocking radio communications.
• C. Mobility kill refers to enemy morale; mobility denial refers to weather effects.
• D. Mobility kill is about air support; mobility denial about naval vessels.

Answer: (D)

In survivability terms, mobility kill and mobility denial describe how you affect an adversary’s ability to move. Mobility kill means you disable movement or make it extremely slow—like a vehicle with a broken engine, damaged transmission, or a ruined track that prevents effective advancement. Mobility denial is about blocking or constraining movement through obstacles, barriers, or difficult terrain—roadblocks, minefields, urban rubble, or other terrain features that force traffic to reroute or stop. The idea is different: mobility kill directly removes the asset’s ability to move, while mobility denial uses the environment or obstacles to deny it movement without necessarily destroying the asset itself. The other options describe unrelated concepts (fleet destruction, communications, morale, weather, or different domains), so they don’t fit the definitions.