US ARMY FM 21-150 - Hand To Hand Combat - Modern Prepper

FM 21-150e. Elbow Lock Against the Knee. While grappling on the ground, adefender can gain control of the situation if he can use an elbow lock(Figure 3-19) against the opponent. He uses his knee as a fulcrum forleverage to break his opponent’s arm at the elbow. Once the arm breaks, thedefender must be prepared with a follow-up technique.3-26