In PLA defensive operations, STATIC defense is best described as...

• A. Rapid offensive action to seize terrain
• B. Strong entrenchments, terrain advantage, obstacles, and stubborn resistance
• C. Complete reliance on mobile maneuver
• D. Air and firepower superiority

Answer: (B)

Static defense in PLA doctrine centers on fixing the defender in strong positions and using terrain to constrain the attacker, rather than chasing quick gains. It relies on entrenched or fortified positions, advantageous terrain, obstacles, and a refusal to yield ground through determined, stubborn resistance. This approach aims to deny or slow an enemy advance, preserve forces, and create favorable conditions for reinforcements or a future counterstroke by exploiting fortifications and obstacles to channel and attrite the attacker.

That’s why this description fits best: entrenched positions paired with terrain advantage and obstacles, supported by resolute defense. Rapid offensives to seize terrain would contradict the defensive mindset. Relying entirely on mobile maneuver would undermine fixed defenses. While air and firepower can support static defense, they don’t define it—the defining feature is the fixed defense posture with strong fortifications, terrain use, and persistent resistance.