KYIV, Ukraine — Ukrainian President Volodymyr Zelenskyy accused the United States on Thursday of delaying deliveries of Patriot air defense missiles that European allies have already paid for, marking a new point of friction between Kyiv and Washington. In his nightly video address, Zelenskyy said the missiles were purchased by European partners but remain undelivered due to what he described as U.S. bureaucratic obstacles. He did not specify which European countries funded the purchases or how many missiles are affected.