Sir Keir Starmer has urged leaders to step up at a "once in a generation moment" for security in Europe at the start of the defence summit on Ukraine. Leaders including French President Emmanuel Macron and Nato secretary-general Mark Rutte are gathered at Lancaster House in London to forge a common position on ending the war.

Trump attacks European leaders in tirade after Starmer insists president is ‘sincere’ - Sir Keir Starmer told MPs that efforts to secure peace in Europe must get strong US backing in an update given t