Japanese Prince Akishino (front, L) and his wife Princess Kiko (front, R) are escorted by Health, Labour and Welfare Minister Yasuhisa Shiozaki (front, C) to pray for unknown war victims during an annual memorial service at Tokyo's Chidorigafuchi National Cemetery on May 25, 2015.  The cemetery is the national Japanese cemetery for unknown war dead in the World War II. AFP PHOTO / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)