S-400 to guard Russia's southern borders

The air defense units of Russia’s Southern Military District will be rearmed with advanced S-400 Triumf air defense systems by the end of 2012, a spokesman for the district said on Monday, RIA-Novosti reports.

The Southern Military District was created in October 2010. It comprises the republics of Adygea, Dagestan, Ingushetia, Kabardino-Balkaria, Kalmykia, Karachay-Cherkessia, North Ossetia, Chechnya, and the Krasnodar, Stavropol, Astrakhan, Volgograd and Rostov regions.