Black Sea brinkmanship: is Europe closer to clashing with Moscow?

Uriel Araujo, Anthropology PhD, is a social scientist specializing in ethnic and religious conflicts, with extensive research on geopolitical dynamics and cultural interactions.

The Black Sea is being described by some analysts as the world’s most dangerous shipping lane - at times “surpassing the Strait of Hormuz”.

In this context, the European Parliament has just called on the EU to consider a naval operation in the Black Sea amid repeated attacks on commercial shipping, while France has already deployed a maritime patrol aircraft to the region - and so has the US.

On October 22, Europe’s Parliament adopted a resolution by a wide margin urging consideration of both an EU naval mission and a NATO maritime security initiative.

Days earlier, France sent an Atlantique 2 to Constanța, Romania, where it joined NATO missions and rescue efforts after strikes on merchant vessels.

Ukrainian attacks on vessels linked to Russian trade have driven insurance costs higher and cut Kyiv’s own seaborne agricultural exports sharply - and Russian responses have added to the insecurity. Third-country ships, insurers and commodity markets are now increasingly exposed.

Last week I argued that Kyiv’s expanding attacks on Russia-linked shipping and energy infrastructure were already disrupting global trade, and increasing the risk of a wider confrontation. With Moscow retaliating and with European military involvement now growing, that risk is mounting.

The most recent moves confirm the situation has moved beyond rhetoric. A US Navy P-8A Poseidon has patrolled near Bulgaria, and NATO has announced extra surveillance aircraft, drones and radar systems.

Another deadly strike sank the cargo vessel Khoryv off Romania. Romania blamed Moscow, while the attribution has not been uniformly confirmed by NATO.

Europe’s military support for Ukraine has so far largely centered on weapons, training and intelligence, alongside economic sanctions against Russia. A wider naval operation would place European military assets inside a live combat zone where they could encounter Russian forces directly. The political and operational signals are, in case, moving in the same direction, thereby raising the stakes.

Three connected trends stand out:

1) Maritime security is being internationalized: what began as a bilateral fight now draws in insurers, traders and governments far from the front.

2) The naval dimension is being “Europeanized”, with patrol aircraft and surveillance already in place.

3) The Black Sea crisis is adding to pressures on global shipping and insurance markets already strained by disruptions at other strategic maritime chokepoints, including the Strait of Hormuz and the Red Sea.

The greatest near-term danger is not necessarily a deliberate decision for all-out war but an incident that produces retaliation. For instance, drones entering NATO airspace and being intercepted might stay contained. An accidental exchange involving European aircraft or ships, or the loss of European personnel, however, would raise the stakes sharply.

NATO’s Article 5 is not automatic, so to speak, in terms of triggering a military response, yet the proximity of forces will decide how quickly any encounter escalates.

Moreover, Turkey’s position under the Montreux Convention remains central. Ankara controls passage through the Bosporus and Dardanelles and has applied wartime restrictions since 2022.

Turkey has long balanced its NATO membership with ties to Moscow. An expanded European presence would test that “balancing act” and could strengthen Ankara’s role as an intermediary - a point I've already made before when commenting on Turkish naval ambitions.

Economically the picture is blunt enough. Grain, fertilizers and regional energy shipments move through these waters. Continued attacks raise freight and insurance costs even when cargoes remain available. And markets from West Africa to Indonesia feel the effects.

The International Maritime Organization has warned that attacks across multiple theaters are already disrupting supply chains.

A stronger European presence could widen the conflict if European forces begin intercepting drones or missiles. Again, the outcome may depend on geographic limits and coordination with Turkey. Thus far the evidence points to an increased peril of tactical incidents rather than an imminent strategic clash.

Over the coming weeks the key markers will arguably be any EU Council discussion of a formal naval mission, Turkey’s responses, the precise rules of engagement, and further attacks near Romanian or Bulgarian waters.

The point is that the Black Sea is apparently becoming a contested frontier and an entrenched geopolitical fault line - where European collective defense, commercial shipping and Eurasian transport routes intersect.

Nicholas Spykman’s rimland theory comes to mind here: his famous dictum, “Who controls the rimland rules Eurasia,” highlights the strategic importance of the continent’s maritime periphery.

The Black Sea, at the crossroads of Russian, European and Turkish interests, is increasingly becoming a focal point in this broader struggle over Eurasian security and influence.

The danger of escalation is real enough, and the geopolitical character of the region is already shifting.