Muay Thai, AKA "Thai boxing", is a combat sport that uses stand-up striking along with various clinching techniques. It is the national sport and cultural martial art of Thailand. The word "Muay Thai" means the "art of eight limbs", as this discipline employs both fists, both elbows, both knees and both shins. The hands become the sword and blade; the shins and forearms were hardened from training to act as armour to defend blows, and the elbow to fell opponents like a heavy hammer; the legs and knees became the axe. The knees and elbows attack while clinching and trying to spin the opponent to the ground for the kill. Muay Thai makes the body operate as one unit and turn a Thai boxer into an ultimate human weapon.