The visit and agreement form part of Britain's Indo-Pacific tilt in foreign policy strategy as it builds security and trade ties in the region.

Kishida is visiting Britain as part of a tour of Group of Seven (G7) countries including France, Italy, Canada and the United States. Japan currently holds the G7 presidency.

Underpinning the desire for closer ties, Britain and Japan have also both described China as a challenge in the Indo-Pacific region.