The Black Sea has become one of the world’s most dangerous commercial waterways, where tankers and cargo ships now cross the Bosphorus draped in tyres, water tanks and netting in a desperate bid to survive an escalating campaign of drone attacks. What began as sporadic strikes on military and energy targets has evolved into a sustained assault on civilian shipping and port infrastructure, forcing merchants, insurers and seafarers to adapt with low-cost, improvised countermeasures that would have seemed outlandish in peacetime. The image of a burning, abandoned Russian cargo ship drifting to a Turkish beach is no longer an anomaly but a symbol of a conflict that has redrawn the risk map for global trade.
A corridor of risk: the Bosphorus as a front line
For hundreds of years, the Bosphorus has been a crucial waterway connecting the Black Sea and the Mediterranean. As of 2026, it has turned into an active frontline where the repercussions of the ongoing war between Russia and Ukraine can be seen on the hulls of passing vessels. Reports by Reuters from Istanbul illustrate the use of hanging tyres, water-filled containers, and metal cages known as “cope cages” on the superstructure of passing tankers and bulk carriers aimed at deflecting and protecting from drone attacks. One example is the Sierra Leone-flagged tanker Caruzo recorded on August 11 with water tanks hanging around its stern, whereas the Russian-flagged tanker Khrizopraz passed through the strait with tires hanged around its hull on August 27. Brisk and Integrator, both crude carriers, were seen with large nets covering their decks last month, proving that this practice is becoming increasingly common.
Improvised defences: what they are and how they might work
The defences now seen on Black Sea vessels fall into three broad categories: blast mitigation, physical barriers and early-warning tactics. Water tanks and tyres are designed to absorb or deflect the shock of a small explosive drone hitting the hull or stern, reducing the chance of catastrophic penetration into engine rooms or fuel systems. Netting, often referred to as a “cope cage,” is intended to snag or prematurely detonate small aerial drones before they reach critical equipment such as radar masts, bridge windows or communications arrays.
Security experts caution, however, that these measures have clear limits. Corey Ranslem, CEO of maritime security firm Dryad Global, notes that
“these tools can be effective for some of the smaller types of drones but when you look at the bigger military types of drones these tools may not be as effective, or in some cases, effective at all.”
In other words, makeshift defences may deter or degrade low-cost reconnaissance or attack UAVs, but they are unlikely to stop larger, purpose-built munitions or fast-moving remote-controlled naval drones carrying heavy warheads.
This gap between what ships can realistically deploy and what modern drones can deliver underscores a troubling asymmetry: commercial vessels are being asked to defend themselves against military-grade threats with hardware and tactics designed for a different era of maritime risk.
The scale of the threat: figures, trends and recent attacks
The gravity of the situation is illustrated by figures cited by both sides as well as third-party sources. For instance, Russia’s foreign ministry spokeswoman Maria Zakharova stated that Ukraine had targeted 214 civilian ships in the Black Sea in 2026 of various nationalities and accused Kyiv of sabotaging regional commerce. Ukraine, in turn, cites Russian aggression toward their vessels and harbors. Deputy Foreign Minister Mariana Betsa noted that Russia’s forces were attacking more than 50 ships during the summer of 2026, which resulted in the death of nearly 30 people.
Third-party reports are consistent with the image of a worsening situation. Reports about the actions of Ukrainian vessels reveal the use of UAVs for reconnaissance of Russia-associated ships; the figure cited for targeted vessels is more than 200, and they belong to Russia’s so-called “ghost fleet” designed for bypassing sanctions against exporting Russian oil. The actual evidence is observable at the entrance of the Bosphorus Strait, where damaged vessels, such as the Liberian-flagged bulk carrier Great Ocean escorted by coast guard ships, with damaged superstructures and darkened decks appear. One of the most spectacular cases is that of the Russian cargo ship Omskiy-107.
After being abandoned following a fire, the vessel drifted from Russian waters to a beach north of Istanbul, its command deck burned out and its condition a stark illustration of how civilian shipping has been dragged into the heart of the conflict.
Ports as targets: infrastructure strikes and export chokepoints
Ships aren’t the only target. Russia has attacked Ukraine’s port infrastructure in the Odesa region, as well as the infrastructure of grain shipments from there and a border crossing with Romania, in an effort to hinder Ukraine’s capability to export through its seaports. Ukrainian authorities report nearly daily flights of drones over the Odesa region, with naval spokesman Dmytro Pletenchuk having reported approximately 40 daily drones in the region, putting air defenses and port operations under immense pressure.
The combined result of all that has been the massive reduction of Ukraine’s seaborne exports. In late August, Ukraine had managed to ship only a third of its normal amount of agricultural products to ports due to reports of port shutdowns and damage to rail logistics infrastructure, including trains needed to transport the grain from the inland silos to the shipping points. This isn’t just the number, but rather it means delayed shipments, increased insurance costs and reluctance of freight companies to visit Ukrainian ports with loaded ships.
Diplomatic reactions: Turkey’s balancing act and the grain deal deadlock
Turkey occupies a uniquely sensitive position. As the gatekeeper of the Bosphorus under the Montreux Convention and a key mediator in previous grain negotiations, Ankara is directly affected by every explosion in the Black Sea. Turkish commercial ships have been among those targeted, prompting the government to summon Ukraine’s ambassador after attacks on two vessels near the Russian port of Tuapse.
President Recep Tayyip Erdogan has portrayed the situation in economic and humanitarian terms, stating that the Black Sea attacks had created a shortage of grains around the world, especially in Africa, and an immediate solution was required. The Foreign Minister of Turkey Hakan Fidan stated that Turkey had devised a plan to make grain travel through the Black Sea safely, and it was being negotiated with both Moscow and Kyiv. However, the window of diplomacy for the new deal has become small since Russia claims that it finds no reason to restart the Turkish-sponsored 2022 grain agreement that allowed the shipment of about 33 million metric tons of Ukrainian grains until Moscow pulled out in 2023 because of impediments in their shipments of food and fertilizers. The Russian President Vladimir Putin claimed amid intense Ukrainian strikes on the Russian fuel infrastructure that Russia was winning the war, even after such challenges along with heavy losses due to static fronts. The Ukraine side has not made any comment on Turkey’s diplomatic call in this reporting cycle with regard to the attacks near Tuapse, but the general strategy of Ukraine is to damage Russia’s export capabilities through the sea of oil and gas.
Economic and human costs: from insurance to food security
The human toll is already measurable. Ukrainian officials report nearly 30 deaths from Russian attacks on vessels in the summer of 2026 alone, a figure that does not include injuries, psychological trauma or the long-term impact on seafaring communities. For sailors, a routine transit through the Black Sea now carries risks once associated with conflict zones such as the Gulf of Aden or the Strait of Hormuz, but with the added complexity of high-tech drone threats and great-power confrontation.
The economic fallout is just as serious. According to the head of a Turkish shipping firm,Türkiye is expected to lose $20 billion because of the attacks by Ukraine on their merchant ships sailing in the Black Sea over the last three months. Apart from being a result of physical damage done to the ships, it also includes extra costs incurred in rerouting the ships, increased insurance, and loss of business. There is an ongoing adjustment of war risk insurance premiums for Black Sea voyages, and many charterers are becoming unwilling to send ships through routes in which there is an increased likelihood of their ships being damaged or detained.
Beyond the individual losses that are immediately felt, there is a bigger issue of food security at stake here. For example, the Middle East and some parts of Africa are very reliant on grain from Ukraine and Russia. With increasing attacks and decreasing exports, the risk of price increases and shortages once again emerges, much like during previous food crises caused by Russia’s first invasion in 2022 and their withdrawal from the grain agreement.
What makeshift defences reveal about the future of maritime conflict
The spread of tyres, water tanks and netting on commercial ships is more than a curious visual trend; it is a signal that the boundary between civilian and military maritime domains is eroding. When merchants feel compelled to adopt battlefield-style countermeasures, it indicates that international norms protecting non-combatant shipping are under severe stress.
These makeshift defences illustrate another capability shortfall as well. Armed forces and militarily-sophisticated vessels have access to layered air defence systems, electronic warfare measures and decoys. Commercial actors, however, are left to tinker with affordable equipment that may serve to mitigate certain risks but not provide any guarantees of safety from organised drone swarms or state-of-the-art naval drones. In this regard, the Black Sea becomes an arena for experimentation of a novel type of maritime conflict, when inexpensive unmanned technologies become a tool to inflict an outsize damage on global logistics. Several ways forward can be envisioned. First, the militarisation of sea lanes, either through formation of convoys, naval escort missions or corridor arrangements that make some sections of the Black Sea effectively off-limits to hostile vessels. Second, an extended era of risky and costly navigation, where only determined operators that are not interested in observing sanctions navigate through the region. Third, the pursuit of diplomatic solution, which could include building upon Turkey’s initiative in an attempt to create some kind of safe passage system without returning to the grain deal of 2022.
