The running theme of Nato’s criticism of Russia is that when it comes to Ukraine, the Kremlin has slipped back into a cold war mentality.
Russia's War Against Ukraine
Financial Times: ‘Masterly’ Russian Ukraine operations leave Nato one step behind
NATO Secretary General Anders Fogh Rasmussen speaks at the Brookings Institution in Washington, DC, on March 19, 2014. NATO's chief Rasmussen said that Russia's \"aggression\" in Ukraine posed the most serious threat to European security since the end of the Cold War.