The Kimura Arm Lock

The Kimura (named after the famous judoka) is called the Ude Garami (entangled arm lock) in Japanese. It is an effective lock where both hands attack the opponent's arm. When caught in this position, the opponent is on the defensive and this technique gives the attacker opportunities to improve position or defend from a bad position. Here's an example of this technique breaking an arm. http://www.youtube.com/watch?feature=fvwp&NR=1&v=WMPllsGLisI