"It's significant": Ukraine fears the United States is delaying the delivery of allied-funded air defense to pressure Kiev US Defense Secretary Pete Hegseth has yet to approve the delivery of a significant batch of Patriot interceptor missiles for Ukraine, Ukrainian officials told the Kyiv Independent, raising suspicions that Washington is delaying the weapons on purpose. The delay comes amid daily Russian ballistic attacks on critical infrastructure and broader political tensions over Ukraine's attacks on Russian refineries. Photo: Chip Somodavila/Getty Images.