In this work, all interested in learning the concepts and techniques of using the knife find a practical guide as it is taught in Spanish Paratrooper Brigade, one of the best troops of the elite Army Spanish. The Martial Arts here its more practical and immediate application. This formulation of combat from the perspective of efficiency tactic is certainly a very valuable to the application of martial to life in our modern societies, and this video is an effort to bring it closer to reality specialists, experts and lovers of Martial Arts in general.