Context: A position and prediction rather than a checkable fact. Both leaders have consistently maintained it: Fico said on Slovak TV in October 2024 he would instruct his party's lawmakers to never approve Ukraine's accession, calling it 'a basis for World War III', and repeated the veto pledge beside Orbán in Bratislava in January 2025. No accession vote has been held; the 2025 Hague and 2026 Ankara summit declarations subsequently dropped membership-path language, though NATO's institutional position ('irreversible path') formally stands. The Bratislava remarks are reported by a Hungarian government-aligned outlet; Fico's October 2024 quote is verbatim via RFE/RL.