Battle Drill 6: Enter and clear a room You’ve likely ... rally the soldiers and equipment before deciding to clear further into the trench system or hold a blocking position for the time being.

There are eight different battle drills: squad attack, react to contact, break contact, react to ambush, knock out bunkers, clear a room, clear a trench and breach a mined wire obstacle.

PABRADE TRAINING AREA, Lithuania - Soldiers of L Troop, 3rd Squadron, 2nd Cavalry Regiment conducted battle drill training on entering/clearing a trench March 14-18 at Pabrade Training Area ...