The mutual-defense alliance has been central to Ukraine’s war against Russia, but the future is uncertain with President Trump back in office.

"Right now, that is still on the table," said John Coale, President Donald Trump's deputy Ukraine envoy, when asked whether the U.S. had ruled out possible NATO membership for Ukraine. Speaking in an interview with Reuters in Munich,

Ukrainian President Volodymyr Zelensky said on Friday that the US had never seen Ukraine as a NATO member, following the latest statements from Washington that Kiev joining the defence alliance would be "unrealistic.