Which statement best describes the relationship between Mass and Mobility in AMD Principles?

• A. Mass means staying in place; Mobility means standing still.
• B. Mass and Mobility are mutually exclusive.
• C. Mass means distributed small units; Mobility means heavy mechs.
• D. Mass and Mobility are both essential; Mass concentrates fires, Mobility enables rapid repositioning.

Answer: (D)

The key idea here is that AMD Principles rely on both strong firepower and the ability to move quickly. Mass and Mobility aren’t opposing forces; they complement each other to create a flexible and effective defense. Mass means concentrating firepower so you can overwhelm or pin a target with enough effect to guarantee a result. Mobility means the capability to reposition rapidly, reallocate resources, and avoid becoming a fixed, easily countered target. When you combine them, you can smash a threat by concentrating fires, then shift to a new position to maintain pressure, respond to changes, or exploit gaps in the enemy plan. Without mass, there isn’t enough firepower to ensure success; without mobility, you become predictable and vulnerable to counter-actions. The other statements misstate what mass and mobility represent—for example, mass isn’t simply staying in place, mobility isn’t about standing still, they aren’t mutually exclusive, and mass isn’t about distributed small units nor limited to heavy mechs.