Ukrainian drones struck the Granit enterprise in Sevastopol on 19 March — a facility within the Almaz-Antey defence conglomerate that repairs S-400, S-300PM2, Buk-M2/M3, and Tor-M2 air defence systems. At least five drones hit the Building, causing heavy structural damage. The Ukrainian Ministry of Defence reiterated its assessment of the resulting gap in Russian air defences 1 .
The strike is the capstone of a fifteen-day campaign . The operational sequence is deliberate: destroy the launchers first, then destroy the facility that would repair and return them to service.
Almaz-Antey is Russia's primary air defence manufacturer and maintainer. Granit is not a production line — it is a repair depot, which makes its loss differently consequential. Russia can, in theory, produce replacement systems at other Almaz-Antey plants, but repair turnaround for battle-damaged equipment depends on specialised tooling, testing rigs, and trained technicians concentrated at facilities like Granit. Dispersing that capacity takes months. The Granit strike follows the Storm Shadow attack on the Kremniy El microelectronics plant in Bryansk on 10 March , which damaged production of semiconductor components used in Iskander guidance and Pantsir fire-control systems. Together, the two operations target different points in the same supply chain: Kremniy El produces the components that go into new systems; Granit repairs the systems already deployed. If both remain degraded, Russia faces a compounding deficit — new production slows while damaged equipment stays out of action.
The measurable consequence will appear in Russian air operations over occupied territory. Russia dropped 264 guided aerial bombs in a single day on 9 March ; sustaining that sortie rate requires pilots to trust the air defence umbrella beneath them. Each launcher destroyed and left unrepaired widens the gap. Whether that gap forces changes in Russian bombing patterns — reduced sortie depth, shifted flight corridors, or lower daily volumes — is the test of whether Ukraine's sequential campaign has moved from attrition to structural degradation of Russia's ability to protect its forces from above.
