“In the past 12 months, we have written the next chapter of the relationship between the UK and Japan – accelerating, building and deepening our ties,” said Mr Sunak.That will make it easier to “bring a destroyer to visit Yokosuka, or to bring in an army group, or to bring in some Royal Marines who want to train with the Japanese amphibious forces”, Dr Graham said.Britain has also become increasingly forceful in its approach to China, with Mr Sunak warning last November that Beijing poses a “systemic challenge” to British values and interests.In 2022, a British patrol ship took part for the first time in Exercise Keen Sword, the regular Pacific training operation carried out by the Japanese and US navies.Japan holds the G-7 presidency in 2023 and Mr Kishida has vowed the group will maintain support for Ukraine, which is expected to be discussed in his talks with Mr Sunak."