The summit comes after a string of deals the White House said Trump has helped broker globally that should earn him something he has long desired -- a Nobel Peace Prize.

The meeting between US President Donald Trump and Russian President Vladimir Putin "could be the first step" towards peace in the Ukraine conflict, Defence Secretary John Healey has said. He added that the UK were ready to "put boots on the ground" in Ukraine to reinforce a ceasefire, in the event that one is agreed.

President Trump is due to meet his Russian counterpart in Anchorage on Friday with a view to ending Moscow's three-year-war invasion of Ukraine.