China has become the first buyer of the S-400 air defense system after signing a contract with the Russian state-run arms dealer Rosoboronexport, the company’s chief executive told Russian daily Kommersant on Monday. The coveted S-400 Triumf is a new generation anti-aircraft weapon system designed to shoot down any enemy aerial target, as well as intercept cruise and ballistic missiles at a range of about 250 miles.
