updated 1/16/2007 8:20:51 PM ET 2007-01-17T01:20:51

In "Warrior Nation," MSNBC goes inside the world of mixed martial arts, one of the fastest-growing sports in the United States. 

Below you can check out some of the moves used in this sport that combines wrestling, boxing Tai Kwon Do, Karate and submission grappling.

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