Mariupol became one of the defining symbols of Russia’s invasion and Ukraine’s resistance. Russia reduced the southern port city to ruins during its siege in 2022. Tens of thousands are believed to have died. Satellite imagery later revealed sprawling mass graves outside the city.

Among the Ukrainian units that fought there was Azov, whose last stand inside the Azovstal steel plant became one of the defining images of the war.

Now Azov has returned to Mariupol from the air. On May 8, Ukraine’s 1st Azov Corps released footage showing reconnaissance and strike drones flying over the occupied city. The videos showed roads, industrial sites and military facilities used by Russian forces. Azov fighters described the operation as a “patrol” over their hometown.

“For now, from the air,” the unit wrote on social media. “But there is more to come.”

Mariupol has now spent four years under Russian occupation. Moscow has tried to militarize the city and reshape it demographically, building new apartment blocks while encouraging Russians to settle there.  

The enemy has worked hard to discredit Azov over the years, highlighting the connections of some of its members to far-right groups. After concerns were raised in Congress about its checkered past, the Biden administration State Department performed a vetting process – looking for human rights violations – under the Leahy laws. Once that process was complete, it allowed the brigade to access US weapons in June 2024.

“Beyond the battlefield, this war has also become a fight over historical narratives,” said John Vsetecka, an assistant professor of history at Nova Southeastern University. Ukrainian drones over Mariupol challenge the Kremlin’s narrative that occupation is permanent.

Shaun Pinner, a British fighter captured during the battle for Mariupol and later freed, said Azov’s return to the skies above the city carries both symbolic and military weight.

“Mariupol is not just another occupied city. It was our home,” Pinner said. “It became the centerpiece of Russia’s entire narrative surrounding the war, and Azov itself became central to the Kremlin’s absurd attempt to define an entire nation as ‘Nazi,’ which was always complete garbage.”

He said the drone flights also undermine Russia’s attempt to normalize the occupation.

“The Kremlin wants occupation to appear permanent and stable, but it’s far from that,” Pinner said. “Explosions, drone activity and visible military insecurity damage that image, both for Russian domestic audiences and collaborators inside occupied areas. It gives those waiting for our return hope.”

But the drone flights are not only symbolic. Mariupol now sits at the center of Russia’s southern logistics corridor linking occupied Donbas to Crimea. Since 2022, Russia has invested heavily in roads, rail links and infrastructure around the Azov coast in an effort to reduce dependence on the vulnerable Kerch Bridge. Supplies, fuel and troops increasingly move through this land corridor.

Ukraine is trying to make that corridor unsafe. “There is no safe rear area for the occupiers,” Azov wrote. “There is nowhere to hide and no way to protect themselves.”

Azov says its drones are operating as far as 160 kilometers behind the front line and that strike distances will continue to increase.

Russian military bloggers have noticed. Romanov, a pro-war commentator, warned that Ukrainian forces were now striking logistics routes with drones operating through Starlink and reaching up to 200 km. He added that Ukraine’s AI-enabled Hornet drones “can be seen flying unimpeded over the Mariupol section of the R-150 highway, searching for targets to engage, primarily fuel tankers and other military vehicles.”

“Within six months to a year, we will very likely encounter fully automated Hornets or other drones that won’t be jammed with EW,” Romanov wrote. “The drone will simply fly into a specific area and then circle around until it selects a target, which the neural network prioritizes.”

Dimko Zhluktenko of Ukraine’s 413th Unmanned Systems Regiment said Ukraine’s recent success is not only about the drones themselves. Ukrainian crews, planners and operators have also improved after years of adaptation under battlefield pressure.

Large mechanized assaults have become rarer. Control of the battlefield is increasingly determined by which side can disrupt logistics and command networks farther behind it.

Dmytro Kavun of Dignitas Ukraine said the pace of these strikes has accelerated because several trends have converged at once. Ukraine is rapidly scaling drone production and could potentially produce seven million drones this year.

Communications between drones and operators have improved, while Ukrainian strikes have steadily degraded Russian air defenses, opening corridors for deeper attacks.

“I believe Ukraine has a considerable technological advantage, particularly in electronic warfare, drone connectivity and drone-based air defense,” said Clément Molin, an open-source analyst.

Kavun said the most important targets lie in what Ukrainian planners increasingly describe as the “mid-range” zone, roughly 30 to 300 kilometers behind the front. This is where Russia stores fuel, ammunition and reserves while concentrating the roads and railways needed to sustain frontline operations.

Andrii Pelypenko of Ukraine’s 419th Battalion of Unmanned Systems said Ukrainian engineers spent years designing and testing systems while Russian strikes repeatedly targeted Ukraine’s infrastructure and industry.

Now, he argues, some Ukrainian drone systems have matured enough to secure large state contracts, allowing production to scale further. Domestic production also gives Kyiv greater operational freedom. Western-supplied systems often come with restrictions on how and where they may be used, especially for strikes deep inside Russia. Ukrainian-built drones do not.

George Barros of the Institute for the Study of War said Ukrainian brigades are increasingly trying to destroy the logistics, staging areas and command posts that make Russian assaults possible in the first place. That shift has driven a sharp increase in strikes roughly 30 to 120 kilometers behind the front line.

According to Barros, Ukraine is increasingly using drones to create localized “kill zones” extending 20 to 30 kilometers deep, with the longer-term goal of pushing them to 45 or even 50 kilometers. If Russian logistics hubs and forward bases are forced farther from the front, Moscow’s infiltration-heavy tactics become harder to sustain.

That pattern is already emerging near Dobropillia. OSINT mapper Playfra said fighting there has become increasingly positional, while Azov units have intensified strikes on deeper Russian logistics routes. In the 1st Azov Corps sector, they noted the casualty ratio temporarily improved to as high as 1:20.

Lev Pashko, known by the callsign “Horus,” commander of the 6th Special Purpose Battalion, argued that battlefield adaptation now matters as much as manpower. “Those that adapt faster to changing battlefield dynamics will prevail,” he said.

“The enemy mobilized its modest resources,” wrote the Russian pro-war blogger Alexander Karchenko. “It switched to drone technology and is striving with all its might toward a robot war. Well, that’s when we’ll have to trade a living human for a flying machine.”

The impact reaches beyond the battlefield. Maria Popova, an associate professor of political science at McGill University, said Russia has long relied on the belief that it could eventually overpower Ukraine through superior manpower and attrition. But Ukraine’s expanding strike campaign is beginning to challenge that narrative.

The battle for Mariupol once symbolized Ukraine’s survival. Its skies now reveal how the war is changing. Occupation no longer guarantees safety. Rear areas are no longer truly rearward. Russia’s theory of slow, inevitable victory is becoming harder to sustain.

David Kirichenko is an associate research Fellow at the Henry Jackson Society. Follow him on X: @DVKirichenko.