Russia's nuclear arsenal and the rules Moscow has laid out for its use are the only factors preventing the West from starting a war against Russia, a top ally of President Vladimir Putin said in an article published on Sunday.
Former President Dmitry Medvedev, now deputy chairman of Russia's Security Council, also said Moscow would pursue its war in Ukraine until the "disgusting, almost fascist regime" in Kyiv was removed and the country had been totally demilitarised.
