Michelle Simmons performs an arm bar technique against oppontent Chief Warrant Officer Peter C. Mantel during afternoon training with Coast Guard Judo, a United States Judo Association registered Judo club at Training Center Yorktown, Va. Thursday, Nov. 27, 2008. The arm bar is a joint-lock technique intended to force the opponent to submit in a match.(U.S. Coast Guard Photo/Petty Officer 3rd Class Mark Jones)
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