Combat grappling is not concerned with competition. Its goal is to win a ground battle as efficiently and effectively as possible. Therefore, its practitioners are usually limited to military, law enforcement, and protective agencies, although, as with other combat arts, there are many students of combat grappling who have never been in, and probably will never be in, a combat situation. Combat grappling focuses its training more on principles than techniques. Rather than teaching and practicing individual techniques, as in sport grappling, combat grappling teaches the principles how joint locking, strangulation, and knockout techniques work and then trains in applying the principles to different situations. Instead of trying to achieve a particular technique, combat grapplers just go with the flow of the struggle and apply grappling principles whenever the opportunity presents itself. Combat grappling also stresses punches, kicks, and deadly techniques. A limitation of combat grappling is that, even though deadly principles are learned, they cannot be fully practiced or used in competition because the opponent may be injured.
In taekwondo training and competition, grappling is not used so learning sport grappling is not of much use. However, in a self-defense situation, taekwondo students may find themselves having to fight on the ground, so they should learn some basic combat grappling techniques. These techniques may be learned by attending seminars on combat ground fighting, training at a taekwondo school that also offers combat grappling, training with a taekwondo instructor with experience in combat grappling, training with a combat grappling student, or simple using books and videos to learn simple techniques and then practicing with a fellow taekwondo student.