Japan's Emperor Naruhito, left, Empress Masako, center, and their daughter Princess Aiko wave to well-wishers, from the balcony of the Imperial Palace in Tokyo on Friday, Feb. 23, 2024.

Prince Mikasa, Brother of Emperor Hirohito of Japan, Dies at 100 Prince Mikasa, an Imperial Army veteran who became a pacifist, was the uncle of the current emperor and fifth in line to the throne.

The State Visit from the Emperor of Japan to the UK was postponed in 2020 due to the Covid pandemic and altered at the last-minute because of the upcoming British general election.

Japan's Emperor Naruhito makes state visit to U.K. His Royal Highness King Charles III (L) and Japan's Emperor Naruhito travel by royal carriage to Buckingham Palace in London on June 25, 2024.