Under NATO’s 1949 founding treaty, decisions on enlargement are made “by unanimous agreement,” meaning that Fico’s opposition to Ukraine joining the alliance could indeed block its membership at least until the end of the Slovak leader’s current term in power in 2027. Other Russia-friendly NATO members could also seek to frustrate Ukraine’s membership aspirations.
Imagine that, people in struggling countries don’t want to get dragged into a forever proxy war between the US and Russia.