The content originally appeared on: CNN (CNN)Europe has a long and bloody history of wars, of borders brutally contested, of nations and empires carving destructive furrows far from home. But a sad harvest of sorrow and loss after the Second World War was followed by decades of relative peace and prosperity, even during a Cold War that did not become hot. Today that peace is being severely tested by Russian President Vladimir Putin as he masses troops on Ukraine's border […]
