High above the red crenelated walls of the Kremlin and the bloody battlefields of Ukraine, mythic Norse Valkyries, mounted on flying stallions, are, allegorically-speaking, circling overhead. Russian President Vladimir Putin is squarely in their sights and he should be wary because these helmeted versions of the winged maidens are not benevolent. They are sinister and charged by the Nordic god Odin with determining who lives and who dies, and who is worthy of entry to Valhalla. It’s likely that Putin was nearly chosen by the Valkyries in December. Only several days after visiting Belarusian President Viktor Lukashenko in Minsk —...