Echoing the previous period's focus on NATO's eastern flank security, this period saw Romania itself directly involved in a security incident. Romanian F-16s destroyed at least two explosive-laden naval drones in the Black Sea, one of which was drifting near the strategic Neptun Deep gas platform. Ukraine confirmed the drones were not Ukrainian, Romania's president blamed Russia, and the EU Commission President labeled it an act of hybrid warfare.
- Romanian F-16s destroyed at least two explosive-laden naval drones in the Black Sea, one near the Neptun Deep gas platform.
- Ukraine confirmed the drones were not Ukrainian, and President Nicușor Dan publicly blamed Russia.
- EU Commission President von der Leyen labeled the incident an act of hybrid warfare against the EU.