British King Charles III welcomes the visiting Japanese Emperor. LONDON — LONDON (AP) — Lord Charles III invited Japan's head and ruler for a state visit that started Tuesday and offered the best in pomp as England proceeds with its job as the most powerful European country in the Indo-Pacific locale needs to reinforce. Ruler Naruhito and Sovereign of Masako will go to a dinner facilitated by the Lord, lay a wreath at Westminster Monastery and visit one of England's most significant biomedical exploration organizations.