Which battle drill focuses on clearing a trench?

The battle drill that focuses on clearing a trench is Battle Drill 7. This drill is specifically designed to prepare soldiers for engaging enemy forces that are entrenched in a defensive position. In the context of this drill, the squad practices techniques for effectively moving through an enemy trench, neutralizing threats, and securing the area.

Understanding the tactics involved in clearing a trench is crucial for a Cavalry Scout, as it enhances their ability to support both offensive operations and defensive maneuvers in combat scenarios. The goal is to develop skills such as teamwork, communication, and effective use of cover, which are all vital in the high-stakes environment of close-quarters combat.

The other battle drills are focused on different tactical situations, such as movement under fire or assaulting an objective, but they do not specifically address the nuances involved in clearing entrenched positions. Thus, Battle Drill 7 is the drill that the military emphasizes for trench clearing scenarios.