 Britain's new Prime Minister, Keir Starmer, has already spoken on the phone with Presidents Biden and Ukraine Zelensky. The BBC's Paul Adams reports Starmer won't waste any time dealing with international issues. Ukraine and Gaza will be on the agenda when Keir Starmer joins NATO leaders in Washington in four days' time. It'll be a chance for the Prime Minister to assess Joe Biden's performance and ponder perhaps the possibility of dealing with a very different president in a matter of months. The UK's role as a cheerleader for Ukraine could be trickier.