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In a post to social media on Monday, Ukrainian president Volodymyr Zelenskyy said that Ukraine was facing dwindling stocks of Patriot interceptor missiles after Pete Hegseth, Trump’s defense secretary, had delayed authorizing new supplies.

“We have been waiting for nearly a month for Mr. Hegseth to sign off on missiles for Patriots and NASAMS,” Zelenskyy wrote. “I instructed our team to raise this with the American side once again. Conversations with other countries are also ongoing.”