- Sofia has asked NATO for enhanced aerial surveillance, air policing and air defence support after a series of drone attacks on commercial shipping
- Recent incidents near Bulgaria and Romania have brought the risks of the Russia Ukraine war directly to NATO’s western Black Sea flank
- Bulgaria plans to join NATO’s counter drone initiative and has earmarked EUR 80mn for 20 systems, but new capabilities will take time to arrive
Bulgaria has asked NATO for additional aerial surveillance, air policing and air defence support after a succession of drone attacks on merchant shipping near its Black Sea coast. On 6 October, the Togo flagged Alfa Watan sank and the Palau flagged Able caught fire after strikes in Bulgaria’s exclusive economic zone, about 70 nautical miles east of Byala. A week later, the Guinea Bissau flagged Dignity sank near Krapets, while the Ukrainian operated and Maltese flagged Chelsea 3 was struck by three drones closer to the Bulgarian coast. Romania’s air force then shot down two Geran family attack drones over its territorial waters on 17 October. The pattern has moved the issue beyond isolated maritime incidents and into a direct test of surveillance, warning and response capabilities on NATO’s southeastern flank.
Attribution should nevertheless remain careful. Bulgarian authorities have said that definitive evidence on the origin of the drones requires forensic examination of recovered wreckage. Sofia has argued that the attacks appear to serve Russian interests and that it would be illogical for Ukraine to target its own vessels, while Kyiv has directly blamed Russia. Moscow has denied having information about the incidents and suggested the possibility of a third party provocation. The absence of a final attribution does not reduce the operational significance of the attacks. Civilian shipping has been hit repeatedly in areas used by vessels approaching Bulgarian, Romanian and Ukrainian ports, increasing risks for crews, insurers, port operators and regional trade.
Defence Minister Dimitar Stoyanov has said that Bulgaria has asked NATO for enhanced aerial surveillance, air policing support and surface to air missile capabilities. Sofia is also coordinating with Romania and Turkey on a common regional response and expects to join NATO’s initiative against low altitude aerial threats by the end of October. Bulgaria has committed EUR 80mn through the EU’s SAFE mechanism for 20 counter drone systems, split between mobile and stationary platforms. Parliament has separately approved the acquisition of five additional IRIS T SLM systems as part of a wider project worth about EUR 1.11bn. These measures are strategically important, but they do not provide an immediate answer to the low cost and difficult to detect drones now operating in the Black Sea.
The suspected arson attack on a Starlink ground facility near Sofia underlines a related vulnerability in critical communications infrastructure. Bulgarian prosecutors have sought the arrest of two suspects, but no public evidence has linked that case to the Black Sea attacks. The two developments should not be treated as one operation without proof. Together, however, they show why Bulgaria’s security challenge is no longer limited to conventional military platforms. The priority is a layered approach combining a shared air and maritime picture with allies, counter drone capabilities, resilient communications infrastructure and rapid forensic investigation.