SOF confirmed the destruction of the Russian S-400 "Triumf" air protection system found within the Kaluga area

SOF confirmed the destruction of the Russian S-400 "Triumf" air protection system found within the Kaluga area<p>The Particular Operations Forces of the Armed Forces of Ukraine confirmed the destruction of the Russian S-400 "Triumf" air protection system within the Kaluga area. On the night time of September 5, SOF assault drones hit one launcher and a radar station of the advanced.</p>