Capt. Emily Rissman a military policemen with Headquarters, Headquarters Company, 300th Military Police Brigade conducts a preventive maintenance checks and services on a High Mobility Multipurpose Wheeled Vehicle as part of a driver licensing and training class for the HMMWV here in Ft. Custer, Michigan. The 300th, is spending nearly two weeks here participating in Operation Spartan Shield, a 300th field training exercise working developing and enhancing basic Soldier and leader skills.