Tuesday's airspace closure

At 8 a.m. local time on 28 July 2026, the Finnish Defence Forces sealed a strip of airspace and a contiguous sea area near the southeastern cities of Kotka and Hamina. The press service of the Finnish Defence Command stated that the measure was essential to safely repel any unmanned aerial vehicles that could accidentally veer into Finnish territory, and to enable their neutralisation if they strayed off course. The restricted maritime zone extended from the open waters near Kaunissaari island to the port of Hamina, effectively halting vessel traffic through the area. Maritime restrictions came into effect shortly after the airspace ban.

Just over two hours later, at around 10 a.m., the restrictions were lifted. Public broadcaster YLE reported that the all-clear was given after Leningrad Oblast governor Aleksandr Drozdenko announced on Telegram that three Ukrainian drones had been shot down over his region and that the situation was stable. The Finnish military did not disclose whether any drone had actually crossed the border.

Governor's confirmation

Drozdenko's message, posted approximately 9:30 a.m. local (8:30 a.m. CET), confirmed that air defence systems had engaged and destroyed three drones, and that no further threat remained. The removal of the immediate risk allowed normal air and sea operations to resume quickly.

A pattern of brief closures

Tuesday's shutdown was the latest in a series of temporary closures that Finland has enacted since Russia launched its full-scale invasion of Ukraine in 2022. The most recent prior event occurred on 10 July 2026, when a section of the eastern Gulf of Finland was closed for similar reasons. The Finnish Defence Command has repeatedly emphasised that such actions are purely precautionary and defensive. The risk is heightened by the dense concentration of Russian military infrastructure near the border, including barracks, storage depots, and freshly cleared forest areas for new bases, which are potential targets for Ukrainian long-range strikes. The press service told YLE that the closures were needed to allow the military to safely intercept drones that might stray toward Finnish territory.

Ukraine's expanding offensive reach

Ukraine has systematically targeted Russian energy, logistics and military facilities to weaken the Kremlin's war effort. President Volodymyr Zelensky recently said that the operational range of Ukrainian attack drones now exceeds 3,000 km, bringing strategic sites in Leningrad Oblast, which borders Finland, well within striking distance. This capability has forced Finland to maintain heightened vigilance along its eastern frontier whenever Ukraine conducts mass drone strikes, as stray or malfunctioning unmanned aircraft could inadvertently enter sovereign airspace. According to RMF24, Ukrainian forces have been attacking refineries, power infrastructure, military logistics centres and air bases, making the region's airspace increasingly contested.

The 28 July closure, though brief and localised, illustrates how the security spillover from the Russia-Ukraine war has become a routine defence management challenge for NATO members adjacent to the conflict.