181207-M-PO745-0061 PEARL HARBOR (Dec. 7, 2018) Rear Adm. Jon Kreitz, right, deputy director of operations for the Defense POW/MIA Accounting Agency, laughs while speaking to a sailor and a Pearl Harbor survivor during a memorial ceremony at the USS Oklahoma Memorial on Ford Island in Pearl Harbor, Hawaii, Dec. 7, 2018. The ceremony was held for the 77th anniversary of the attack on Pearl Harbor and to remember the service members who perished aboard USS Oklahoma. (U.S. Marine Corps photo by Sgt. Jacqueline A. Clifford/Released)