Which term refers to breaching a defense or penetrating enemy lines?

• A. Block
• B. Penetrate
• C. Suppress
• D. Guard

Answer: (B)

Penetrating enemy lines is about breaking through a defensive position and moving past it to exploit the breach. That action—to breach the defense and push through—is exactly what the term penetrates conveys. It describes the attacker breaking into and through the defense, creating an opening for follow-on forces. The other terms describe related but different aims: blocking is about stopping movement or advances; suppressing is about reducing the enemy’s ability to fire or observe, without necessarily getting through the line; guarding is about protecting a position or area. So penetrating the defense best matches the idea of breaching and driving through the lines.