Ukrainian president is expected to meet Trump on the sidelines of the UN general assembly in New York; Washington’s new UN envoy convenes emergency meeting. What we know on day 1,308

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Ukrainian president Volodymyr Zelenskyy has landed in New York where he will attend the United Nations general assembly and try to drum up support for a US-led peace effort to end the war in Ukraine. “We are doing everything to stop the war,” he wrote on X on Tuesday, adding that he had two dozen meetings scheduled. The Ukrainian leader is expected to meet US president Donald Trump and other world leaders on the sidelines of the UN meeting, and deliver an address on Wednesday.

Zelenskyy said he would also attend the first leaders’ summit of the Coalition for the Return of Ukrainian Children, which would for the first time be held on a global stage. The meeting, he said, underlined “the global nature of the changes brought about by this war, the war that Russia began in Crimea”. As many as 35,000 Ukrainian children are still missing and thought to be held in Russia or Russian-occupied territories, according to an American team of experts.

Washington’s new envoy to the United Nations, Michael Waltz, vowed on Monday to “defend every inch of Nato territory” as he addressed an emergency meeting over an incursion by Russian fighter jets into Estonia’s airspace. Nato scrambled jets after three Russian MiG-31 fighters on Friday breached Estonian airspace, triggering complaints of a dangerous new provocation and denial from Moscow.