Cambodia has increasingly become involved in sports over the last 30 years. Football is popular as are martial arts, including bokator, pradal serey (Khmer kick boxing), and Khmer traditional wrestling.
Bokator is an ancient Khmer martial art said[by whom?] to be the predecessor of all Southeast Asian kickboxing styles. Depicted in the bas relief at Angkor Wat,[dubious – discuss] bokator was the close quarter combat system used by the ancient Angkor army. Unlike kickboxing, which is a sport fighting art, bokator was a soldier’s art, designed to be used on the battlefield. When fighting, bokator practitioners still wear the uniforms of ancient Khmer armies. A kroma (scarf) is folded around their waist and blue and red silk cords are tied around the combatant's head and biceps.