Has Putin purged his top commander? General leading the Ukraine war 'hasn't been seen in two weeks' amid rumours he is no longer in charge General Aleksandr Dvornikov has not been seen for two weeks, US officials say Dvornikov was tapped by Putin in April to lead was after failed attack on Kyiv But he may have lost command as Russia takes heavy losses in Donbas, US says General Valery Gerasimov,..