S-400

The S-400 Triumf is Russia's premier long-range surface-to-air missile system, manufactured by Almaz-Antey and entering service in 2007. It engages aircraft, Cruise Missiles, Ballistic Missiles, and drones at ranges up to 400 km, simultaneously tracking up to 300 targets, and forms the backbone of Russia's integrated air defence network. It has been exported to Turkey, China, and India, creating diplomatic friction with NATO.

Ukraine has made systematic destruction of S-400 batteries a strategic priority. Between 1 and 15 March 2026, Ukrainian forces struck over 20 Russian air defence targets across Crimea, Kherson, Luhansk, and Zaporizhzhia oblasts, including S-400 launchers and associated radars. On 19 March, Ukrainian drones struck the Granit repair facility in Sevastopol, part of Almaz-Antey, which services S-400 and S-300 systems, severing the logistics chain that restores destroyed batteries.

By April 2026, the attrition campaign had attracted new actors. Portuguese drone manufacturer Tekever claimed its AR3 ISR drone, which has logged over 50,000 operational hours in Ukraine, had provided targeting data contributing to the destruction of two S-400 systems, though this claim is unverified. The S-400's export record creates a geopolitical fault line: Turkey's purchase triggered US sanctions under CAATSA and its suspension from the F-35 programme, while India's acquisition remains a live diplomatic pressure point. Each battery lost in Ukraine not only degrades front-line air cover but erodes the system's commercial credibility at a moment when Russia cannot replace production losses at scale. Six S-400 missiles were among the mixed barrage, alongside Iskander-M Ballistic Missiles, Cruise Missiles and 121 drones, that Russia fired at Ukraine overnight on 10-11 July 2026, confirming the system remains in active combat use even as the destruction campaign against its batteries continues.