As part of Marine Corps Air Station Yuma's day-long "Introduction to Devil Dogs" event for local elementary schools, GySgt. Matthew Bateman, the explosive ordnance disposal operations chief and team leader with Headquarters and Headquarters Squadron and a native of Los Angeles, CA., demonstrated the capabilities of the remote ordnance neutralization system (RONS) to 2nd graders of Mary A. Otondo Elementary School at Ramada Field, May 9.