Capt. Joseph Graves, a platoon commander with Company G, 2nd Battalion, 25th Marine Regiment, works with an Iraqi Police Officer to defuse a public disturbance during a training exercise July 21, 2008 at Marine Corps Air Ground Combat Center in Twentynine Palms, Calif. The exercise was designed to provide Marines the opportunity to work with native-born Iraqi role players in a realistic scenario to prepare them for an upcoming deployment.