Russia and Ukraine exchanged large waves of attack drones overnight into Sunday as the two combatants maneuvered ahead of Friday's planned summit in Alaska between U.S. President Donald Trump and Russian President Vladimir Putin.

US Vice-President JD Vance and UK Foreign Secretary David Lammy have hosted a meeting of security officials near London to discuss the war in Ukraine. The talks are said to have been called at the request of the US.

The threats, pressure and ultimatums have come and gone, but Russian President Vladimir Putin has maintained Moscow’s uncompromising demands in the war in Ukraine, raising fears he could use a planned summit with US President Donald Trump in Alaska to coerce Kyiv into accepting an unfavorable deal.