British media outlet The Economist, with reference to military sources in Kyiv, assumes that Russia decided to turn the city of Kharkiv into a "grey zone" uninhabitable for civilians. Source: The Economist, in the story titled The Kremlin wants to make Ukraine's second city unliveable Quote: "The escalation had military sources in Kyiv suggesting that Russia has resolved to make the city a "grey zone", uninhabitable for civilians.