Sgt. Maj. Insu Paek, former Marine Corps Communication-Electronics School sergeant major, speaks to the attendees during a Relief and Appointment and Retirement Ceremony at Lance Cpl. Torrey L. Gray Field, Feb. 12, 2014. - Sgt. Maj. Insu Paek, former Marine Corps Communication-Electronics School sergeant major, speaks to the attendees during a Relief and Appointment and Retirement Ceremony at Lance Cpl. Torrey L. Gray Field, Feb. 12, 2014.