“Neither Ukraine nor Russia is going to win this war, and the sooner that the parties try to end this, the better," Kupchan said.
Volodymyr Zelenskyy visits Washington as election year divide grows over Ukraine war
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Mr. Kupchan said the Polish incident underscored the larger danger unleashed by Mr. Putin’s decision to invade, with a hot war raging right on NATO’s borders and Russian missile and Ukrainian anti-missile systems clashing in the skies almost daily.
Two dead as suspected Russian missiles cross into Poland
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