The Japanese emperor Naruhito has officially accepted the throne and made the promise that he will fulfill his duty as a symbol of the state. The 59-year-old Naruhito did that in an ancient ceremony in the main hall of the Imperial Palace in Tokyo in the presence of heads of state and guests from more than 180 countries. Op de foto / On the photo: Koning Felipe VI van Spanje en Koningin Letizia // King Felipe VI of Spain and Queen Letizia