The Cost of Doing Nothing in Ukraine Will Be Immense

FIRST Vladimir Putin mauled Georgia, but the world forgave him—because Russia was too important to be cut adrift. Then he gobbled up Crimea, but the world accepted it—because Crimea should have been Russian all along. Now he has infiltrated eastern Ukraine, but the world is hesitating—because infiltration is not quite invasion. But if the West does not face up to Mr Putin now, it may find him at its door.