S-300, S-400 air defense systems reliably protect Russian Far East, says defense chief
MOSCOW, March 25. /TASS/: Russia’s S-300V4 air defense systems deployed on the Kuril Islands and S-400 surface-to-air launchers on the Sakhalin Island and MiG-31BM interceptor-fighters in Chukotka have reliably protected the Russian Far Eastern frontiers from the Chukchi Sea to the Sea of Japan, Russian Defense Minister Sergei Shoigu said on Thursday.