Marines from MCB Quantico chat with retired Mastery Gunnery Sgt. John H. Deters at a party to celebrate his 88th birthday in Fredericksburg on Aug. 2. Deters is a World War II veteran who served at both Okinawa and Iwo Jima. - Marines from MCB Quantico chat with retired Mastery Gunnery Sgt. John H. Deters at a party to celebrate his 88th birthday in Fredericksburg on Aug. 2. Deters is a World War II veteran who served at both Okinawa and Iwo Jima.