Lance Cpl. Barrett Dylan, a member of the silent drill platoon at Marine Barracks Washington, participates in the clean-and-press during the Prince George?s County Police Department?s 3rd Annual Iron Man Endurance Competition at T. Howard Duckett Park, Sept. 26. Police and fire departments, military members and federal government agencies from Prince George?s County and surrounding areas participated. - Lance Cpl. Barrett Dylan, a member of the silent drill platoon at Marine Barracks Washington, participates in the clean-and-press during the Prince George?s County Police Department?s 3rd Annual Iron Man Endurance Competition at T. Howard Duckett Park, Sept. 26. Police and fire departments, military members and federal government agencies from Prince George?s County and surrounding areas participated.