Ukraine's Security Service (SBU) carried out a massive drone strike against Russia's Sevastopol in Crimea - a night operation targeting the Black Sea Fleet headquarters and Belbek airbase. Result: two landing ships (Yamal and Filchenkov) and reconnaissance vessel Ivan Khurs damaged. At Belbek - a MiG-31 fighter destroyed and technical units damaged. No target selection is accidental.

The SBU confirmed that the operation is part of a systematic campaign to destroy Russia's ability to control airspace and protect forces in Crimea. The peninsula Russia annexed in 2014 is under increasing pressure - and Ukraine has demonstrated that drones can reach where missiles are a political liability. The primary force projection method in modern asymmetric warfare.

The operation came only days after a successful April 21 strike on a production facility in Samara, where five fuel storage tanks were damaged. The pattern is clear: Ukraine is systematically targeting infrastructure and military capacity deep within Russian-controlled territory. Every week, a new location.

How long can Russia sustain a military fleet and air defense on a peninsula under this kind of pressure? The question has no obvious answer, but the timeframe in which that answer will arrive is shortening.