Is a self-defense martial art and combat sport that emphasizes ground fighting techniques, centered on the ability to control your opponent and gain a dominant position. There are a vast number of formations (such as joint locks and chokeholds) that you can learn to force the opponent into submission. This is a way of leveraging your weight distribution to take the fight to the ground, and then using submission moves to defeat them. Overall, this sport proves that smaller and "weaker" people can still defend themselves against someone who features a more substantial, heavier demeanor.