FILE - Japan's Emperor Naruhito inspects the honour guard on Horse Guards parade during the ceremonial welcome for start of the State Visit to Britain by the Japanese Emperor and Empress, in London, Tuesday, June 25, 2024. Naruhito and the Empress Masako, who studied at Oxford a few years after her husband, wrapped up a weeklong trip to Britain on Friday. Their itinerary combined the glitter and ceremony of a state visit with four days of less formal events that gave the royal couple an opportunity to revisit their personal connections to Britain. (AP Photo/Kin Cheung, Pool, File)