Divya Delhi : Medvedev, who has been sparring with Trump on social media, made the declaration after Russia's Foreign Ministry said it no longer considered itself obliged by the self-imposed prohibition on nuclear weapons deployment. Former Russian President Dmitry Medvedev blamed Nato nations for ending a ban on short- and medium-range nuclear missile deployment on Tuesday, threatening future retaliation. Medvedev, who has been sparring with Trump on social media, made the declaration after Russia's Foreign Ministry said it no longer considered itself obliged by the self-imposed prohibition on nuclear weapons deployment. This follows US deployment of two nuclear submarines to "the appropriate regions." He added, "The Russian Foreign Ministry's statement on the withdrawal of the moratorium on the deployment of medium-and short-range missiles is the result of Nato countries’ anti-Russian policy." All our opponents must face this new reality. As deputy head of Russia's Security Council, Medvedev expects more action. Medvedev answered immediately after Russia's Foreign Ministry stated that Moscow no longer considered itself obliged by its self-imposed prohibition on intermediate- and short-range missiles due to the breakdown of circumstances. The ministry underlined Western missile proliferation efforts and stressed that they threaten Russia's security. The statement highlighted that Russia must take particular steps.