Russia on Sunday launched its largest air strike on Ukraine since the war — defiantly demonstrating the Kremlin’s “disdain” for President Trump’s peace efforts, Ukraine’s prime minister told The Post.

The deadly, devastating assault included a first-ever strike on Ukraine’s central government headquarters in Kyiv and involved 810 drones and decoys and at least five missiles fired between Saturday night and Sunday morning, Ukrainian officials said.

Four civilians were killed, including a mother and her 2-month-old baby, PM Yulia Svyrydenko said. 5

“That child was not even able yet to say, ‘Mama,’ ” Svyrydenko said. “For me, it emphasizes that this is an existential war for Ukraine, because they are trying to kill our future by killing our children — and they try to kill our sover

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