“Didn’t somebody or other proclaim “the cold war is over”?”That still hold true. Putin’s Russia is inextricably tangled in the global economy. The same could not be said of the USSR. While Putin is looking to assert Russian muscle on it’s neighbors, nuclear war is not on the table & Berlin is safe.Putin is a challenge to NATO. He sees NATO as a challenge to Russian influence. Neither side should see the other as a mortal threat.