Chief Warrant Officer Jason Barrett explains the mechanical systems of a Humvee.
U.S. Army Chief Warrant Officer Jason Barrett from Foxtrot Company, 2nd Battalion, 505th Parachute Infantry Regiment, 3rd Brigade Combat Team, 82nd Airborne Division explains the mechanical systems of a Humvee to Iraqi National Police mechanics during Humvee familiarization training at Joint Security Station Beladiyat in Baghdad, Iraq, on Jan. 5, 2009.