PLA Military Doctrine and Defense Strategies Practice Test

This principle emphasizes concentrating decisive power where it will have the quickest, most decisive effect. Attacking across multiple depths—physical, virtual, and psychological—creates a synergistic disruption that the defender cannot easily compensate for.

Physical depth targets tangible means: forces, terrain, and infrastructure. Virtual depth strikes information and command networks, cyber domains, and other digital advantages that keep the opponent coordinated and informed. Psychological depth goes after morale, will, confidence, and legitimacy, eroding the will to fight. When you strike at all three levels, you cripple the enemy’s ability to respond, disrupt decision-making, and hasten collapse, making the overall effort far more effective than focusing on a single dimension.

Economic depth exists but is not the primary framing here; it can influence warfighting capacity, yet alone it doesn’t produce the rapid, decisive effect intended by concentrating offensive power across physical, virtual, and psychological realms.