Context: Mixed, against NATO's published register of Article 4 invocations. True that Article 4 was invoked over Crimea — but by Poland alone on 3 March 2014; the register names Romania only among the eight allies who requested consultations together on 24 February 2022. The operative half stands: Article 4 remains available to Bucharest and has not been used — as of 30 July 2026 the register lists nine invocations, the most recent Estonia's on 23 September 2025.