...The initial assault toward Kherson in the south wasn’t a feint. It was a major strategic thrust that might yet push Russian troops back from the western bank of the Dnieper River. But deftly, the Ukrainians also moved in the Kharkiv region in the northeast while the Russians were asleep there. They didn’t rush the advance; they softened up Russian lines and then, last week, burst through in a devastating assault that put Russia in pell-mell retreat and regained more than 1,100 square miles of territory. ..Vladimir Putin. He is the loser in this latest round, but he is also...