On 1 March 2016, the acting commander of the 14th Air Force and Air Defense Army, major general Vladimir Korytkov, said that six S-400 units had been activated according to his order in the anti-aircraft missile regiment of the Novosibirsk air defense formation in Russia's Novosibirsk Oblast. TASS also reported that as of the end of 2015, a total of eleven Russian missile regiments were armed with S-400, and by the end of 2016 their number was expected to increase to sixteen.