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.

Kyiv: 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 unfavourable deal.

President Trump said a deal would involve "some swapping of territories to the betterment of both." Kyiv and its European allies say ceding land would only encourage Russian aggression.