The joint pledge aligns with Merz’s controversial push to extend the Anglo-French nuclear deterrent to the rest of Europe.

The prime minister called the meeting a 'privilege' and 'evidence of the closeness of the relationship' between the United Kingdom and Germany.

The United Kingdom, France and Germany have agreed to restore tough U.N. sanctions on Iran by the end of August if there has been no concrete progress on a nuclear deal

Sir Keir Starmer and German Chancellor Friedrich Merz have signed a treaty as the two nations look to "work ever more closely" on issues such as trade and security.

Britain and Germany will on Thursday vow to work more closely to sell jointly made weapons, including Typhoon jets, in a deal that Downing Street claims can unlock “billions of pounds of additional defence exports”.