Which area is the forward-most zone of the defense and is analog to the Western Security Zone?

• A. Frontal Blocking Zone
• B. Deep Area (Defense)
• C. Frontier Defense Zone
• D. Depth Defense Zone

Answer: (B)

The key idea here is how defense is layered to meet an approaching threat. The forward-most defense area is the one that directly faces the enemy, slowing, disrupting, and buying time for reserves to respond. In PLA terms, the Deep Area (Defense) is described as the zone just inside the border that carries out the initial combat and delaying actions to fix the attacker in place and shape the battle early on. This makes it the closest defensive belt to the enemy and, functionally, the analogue to the Western Security Zone, which serves as the near-border security layer in Western doctrine. Other zones describe deeper or more outward-focused roles (such as a strictly border-facing frontier, or deeper defense lines), but the Deep Area Defense is the best fit for the forward-most, initial defense layer.