Japanese Emperor Akihito (L) and Empress Michiko (R) enter a room to say good bye to Crown Prince Naruhito and wellwishers as they leave to Palau at the Tokyo International Airport on April 8, 2015. The Japanese royal couple will visit Palau to pay homage to victims of World War II to mark the 70th anniversary of the end of the war. AFP PHOTO / POOL / Yoshikazu TSUNO        (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)