In hand-to-hand combat, grappling is a close fighting technique used to gain a physical
advantage such as improving relative position, or causing injury to the opponent. Grappling
covers techniques used in many disciplines, styles and martial arts that are practiced both
as combat sports and for self-defense.
Grappling most commonly does not include striking or the use of weapons. However, some fighting styles or martial arts known especially for their grappling techniques teach tactics that include strikes and weapons either alongside grappling or combined with it.
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 him 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.