President Donald Trump said Friday that he was unsure if he’d be able to end Russia’s war against Ukraine, a far cry from his promise to swiftly put a stop to the conflict that he made on the campaign trail.

Russia has bombarded Kyiv with the largest aerial attack since the beginning of its full-scale invasion of Ukraine in 2022.Overnight on Thursday, Moscow launched 539 drone and 11 missile strikes that struck nearly every district of the Ukrainian capital,

Zelenskiy said he discussed air defences with Trump and agreed to work on increasing Kyiv's capability to "defend the sky".