New Delhi, Aug. 11 -- Ukrainian President Volodymyr Zelenskiy secured strong diplomatic backing from European leaders and NATO on Sunday, as concerns mount ahead of the much-anticipated Russia-U.S. summit scheduled for August 15 in Alaska. Kyiv fears that Presidents Vladimir Putin and Donald Trump may negotiate terms without Ukrainian involvement, potentially pressuring Ukraine to cede territory in the ongoing conflict.

President Trump, who had previously threatened new sanctions on Russia, surprised many by announcing the summit with Putin, raising alarm in Kyiv. Trump suggested a possible deal involving "some swapping of territories to the betterment of both sides," a notion that has deeply unsettled Ukrainian officials.

Zelenskiy res...