be accomplished from having the opponent in full-guard. Applications When unskilled fighters get embroiled in combat, a common reaction is to grab the opponent in an attempt to slow the situation down by holding them still, resulting in an unsystematic struggle that relies on brute force. A skilled fighter, in contrast, can perform takedowns as a way of progressing to a superior position such as a Mount (grappling) or side control, or using clinch holds and ground positions to set up strikes, choke holds, and joint locks. A grappler who has been taken down to the ground can use defensive positions such as the Guard (grappling), which protects against being mounted or attacked. If a grappler is strong and can utilize leverage well, a takedown or throw itself can be a fight-ending maneuver; the impact can render an opponent unconscious. On the other hand, grappling also offers the possibility of controlling an opponent without injuring them. For their reason, most police staff receive some training in grappling. Likewise, grappling sports have been devised so that their participants can compete using full physical effort without injuring their opponents. Grappling is called dumog in Eskrima. The term chin na in Chinese martial arts deals with the use of grappling to achieve submission or incapacitation of the opponent (these may involve the use of acupressure points). Some Chinese martial arts, aikido, some eskrima systems, the Viking martial art of glima, as well as medieval and Renaissance European martial arts, practice grappling while one or both participants is armed. Their practice is significantly more dangerous than unarmed grappling and generally requires a great deal of training. Types of grappling There are many different regional styles of grappling around the world that are practiced within a limited geographic area or country. Several grappling styles like Sport judo, shoot wrestling, catch wrestling, Grappling, Brazilian jiu-jitsu, Sport Sambo and several types of wrestling including freestyle and Greco-Roman have gained global popularity. Judo, Freestyle Wrestling, and Greco-Roman Wrestling are Olympic Sports while Grappling, Brazilian Jiu-jitsu and Sambo have their own World Championship Competitions. Other known grappling-oriented systems are shuai jiao, malla-yuddha and aikido. In these arts, the object is either to take down and pin the opponent, or to catch the adversary in a specialized chokehold or joint lock which forces them to submit and admit defeat or be rendered helpless (unconscious or broken limbs). There are two forms of dress for grappling that dictate pace and style of action: with a jacket, such as a gi or kurtka, and without (No-Gi). The jacket, or "gi", form most often utilizes grips on the cloth to control the opponent's body, while the "no-gi" form emphasizes body control of the torso and head using only the natural holds provided by the body. The use of a jacket is compulsory in judo competition, sambo competition, and most Brazilian jiu-jitsu competition, as well as a variety of folk wrestling styles around the world. Jackets are not used in many forms of wrestling, such as Olympic Freestyle, Greco-Roman wrestling and Grappling. Grappling techniques are also used in mixed martial arts along with striking techniques. Strikes can be used to set up grappling techniques and vice versa. ADCC The ADCC Submission Wrestling World Championship is the most prestigious full range (takedown, position, and submission inclusive) grappling tournament in the world and is only held once every two years. Mundials The World Jiu-Jitsu Championship, also commonly called the Mundials (Portuguese for "Worlds"), is the most prestigious jacketed full range (takedown, position, and submission inclusive) grappling tournament in the world. The event also hosts a non-jacketed