U.S. Marine Gunnery Sgt. Cory Trott, a chemical biological radiological nuclear and anti-terrorism force protection chief with 3rd Marine Expeditionary Brigade poses for a photo after his retirement ceremony aboard Camp Courtney, Okinawa, Japan, Jan. 6, 2023 . Trott, a native of Richmond, VA, retired from the Marine Corps after 20 years of military service.