Few have been more transformed than Prime Minister Keir Starmer of Britain, who was elected last summer on a standard-issue promise to revive his country’s economy and public services.

Sir Keir gathered European leaders in London on Sunday to forge a common position on ending the war in Ukraine. Mr Zelensky joined Sir Keir at the summit alongside the leaders of other European ...

Today Britain and France have put such theatrical rivalry behind them. As Sir Keir Starmer, the current prime minister, and Mr Macron jointly take the lead on Europe’s effort to salvage support ...