The Russian politician noted that these deployments had become a significant factor undermining the collective security system and eroding the sovereignty of states SAINT-PETERSBURG, June 24. /TASS/. Legal mechanisms must be put in place to address the deployment of Western military bases in foreign territories because it provokes tension, Deputy Chairman of the Russian Security Council Dmitry Medvedev told the St. Petersburg International Legal Forum (SPILF). He noted that these deployments