Drone Strikes Sink Ship Off NATO Member Bulgaria As Russia Tensions Rise (Worthy News In-Depth)

by Stefan J. Bos, Worthy News Europe Bureau Chief

SOFIA/BUDAPEST (Worthy News) – Concerns about an expanding confrontation between Russia and the NATO military alliance mounted Tuesday after air and sea drones struck two merchant ships in the Black Sea economic zone of NATO member Bulgaria, sinking one vessel and setting another ablaze.

Bulgarian authorities were searching for the missing crew of the sunken Togo-flagged ALFA WATAN, while all 18 crew members aboard the Palau-flagged ABLE were rescued after that vessel caught fire. Two sailors were seriously injured, officials confirmed.

Bulgarian Prime Minister Rumen Radev said the ships were hit about 70 miles (112 kilometers) east of the coastal town of Byala. Shipping sources said it appeared to be the first such incident within Bulgaria’s exclusive economic zone.

Officials had not disclosed how many people were aboard the ALFA WATAN or what cargo the vessel was carrying.

RUSSIA SUSPECTED

One injured sailor from the ABLE suffered burns while another sustained a head injury. The remaining 16 crew members were later brought to Varna and were not seriously injured.

Responsibility remained unclear. Radev said investigators could not yet determine whether the drones came from Russia or Ukraine, but a maritime security source suggested the operation was probably Russian. Moscow did not immediately comment.

Radev warned that the incident demonstrated the danger of allowing Russia’s war against Ukraine to spread beyond the battlefield.

“If this war is not brought to an end in time, it will continue to expand its geographical scope and increase the risk of even a global conflict,” he said.

WIDER WAR FEARS

“We are seeing the war intensify, with all the rules of international law now being violated, and civilian vessels being attacked at sea. This is absolutely unacceptable.”

The European Commission, the European Union’s executive arm, condemned the attack. Commission President Ursula von der Leyen called attacks on civilian shipping in the Black Sea “unacceptable,” adding that they were putting commercial crews at risk.

Hungarian Prime Minister Péter Magyar said Hungary stood “in full solidarity with Bulgaria.”

The violence came a day after Romanian authorities reported that two people had died following a fire aboard another merchant vessel outside Romania’s territorial waters.

SHIPPING THREAT

Eleven people were rescued from that ship, the ROYAD MAMMADOV, while one crew member was injured. Ukrainian President Volodymyr Zelensky blamed Russian drones, although Romanian officials had not established the cause. Moscow did not immediately respond to the accusation.

The vessel was carrying corn from Ukraine’s Danube port of Izmail toward Ravenna, Italy.

Maritime security specialists warned that the incidents represented a significant expansion of risks to commercial shipping in the western Black Sea.

The maritime security firm MARISKS described their geographical spread beyond waters immediately adjacent to Ukraine and into the exclusive economic zones of NATO members Romania and Bulgaria as particularly concerning.

NATO DEFENSE PLAN

The escalating maritime danger comes as NATO’s top military commander prepares to unveil a strategy showing how the alliance could rapidly defeat a Russian assault on its eastern flank by combining conventional forces with drones, artificial intelligence (AI) and other emerging technologies.

Supreme Allied Commander Europe General Alexus Grynkewich is due to present the so-called “Theory of Victory” in Poland on October 12, according to reports based on an unclassified version of the document.

The plan aims to clarify how NATO would respond to a possible incursion into allied territory and how conventional forces would operate alongside relatively inexpensive drones and related technology.

Grynkewich spokesman Colonel Martin O’Donnell summarized the approach: “The Supreme Allied Commander Europe’s theory of victory is simple: maintain NATO’s advantage.”

NATO’S ADVANTAGE

“Given the unsettled and complex global security environment, we need to set conditions now to deter aggression and, if necessary, win if attacked,” O’Donnell added.

Alliance officials have stressed that the 32-member organization remains defensive.

The strategy envisages initially blocking an incursion with land forces and capabilities being developed under its Eastern Flank Deterrence Initiative before targeting an adversary’s command-and-control systems and ultimately defeating invading forces.

NATO Secretary General Mark Rutte has stressed there are no indications of an imminent Russian conventional assault on allied territory, but has expressed concern about Moscow’s hybrid activities.

RUTTE WARNS

His relatively measured assessment of the immediate danger contrasts with the dramatic language he used shortly after becoming NATO secretary general. In December 2024, Rutte warned that “danger is moving towards us at full speed” and urged member countries to adopt a “wartime mindset.”

His warning focused on the alliance’s ability to deter Russia over the coming years. Rutte argued NATO was “not ready for what is coming our way in four to five years.”

In the Baltic region, Latvian intelligence chief Normunds Mežviets said there were “no indications of an immediate attack,” but added that Moscow appeared to be preparing options for more forceful action in Europe over the longer term.

Rutte stressed, however, that NATO continues strengthening defenses in countries bordering Russia and Belarus.

HYBRID WARFARE

European governments have accused Moscow of hybrid activities ranging from cyberattacks and sabotage to drone incursions and airspace violations.

EU foreign policy chief Kaja Kallas said Monday that Russia was putting lives at risk across Europe with drone and missile incursions. Moscow has rejected Western accusations that it is conducting such operations.

The forthcoming strategy explicitly includes collectively countering hybrid threats — hostile actions below the threshold of conventional warfare — as part of NATO’s deterrence posture.

Member states, particularly in Europe, have sharply increased military spending since Russia launched its full-scale invasion of Ukraine in February 2022.

DEFENSE SPENDING

The armed conflict, Europe’s bloodiest since World War II, has also impacted military planning, with drones increasingly operating alongside tanks, artillery, missiles and traditional aircraft.

The European military transformation comes as Washington reviews aspects of its military commitments while pressing European allies to assume a greater share of the continent’s defense burden.

Against that backdrop, Tuesday’s events off Bulgaria underscored fears that the war is increasingly endangering civilian shipping far beyond Ukraine’s immediate coastal waters.

Bulgaria does not border Russia or Ukraine but occupies a strategically important position on the western Black Sea. The disappearance of the ALFA WATAN crew therefore left authorities confronting both a major search-and-rescue operation and new questions about the security of commercial shipping along NATO’s southeastern flank.