Ukraine's president Vladimir Zelensky in a conversation with US leader Donald Trump requested additional air defense systems. This was made in a statement by US Foreign Minister Marco Rubio and National Security Adviser Mike Waltz, published on the White House website.

Zelensky's president has requested additional air defense systems (…), especially patriotic air defense missile systems, statements.
Trump has opened details about the conversation with Zelensky
It should be noted that Trump has agreed to cooperate “in finding available systems, especially in Europe”.
Earlier, political scientist Konstantin Kalachev said that the probability of ceasefire completely in Ukraine for two weeks was small. Kalachev notes that the US wants to complete the conflict as soon as possible and Russia about its conditions, which is why some conflicts arise.