The best laid training plans get delayed and fall apart for a variety of reasons. So with 20 minutes between training sessions today, our platoon sergeant paired us off for 20 minutes of martial arts training. We learned two moves: how to parry a jab to the face and hit your opponent below the belt in one smooth move, and how to disable an attackers arm when he swings a fist at you. The second one is called a "destroy" move on the attackers arm.
Our platoon sergeant is a martial arts instructor, so he can fill in down time with martial arts instruction. Other sergeants fill in with different training.