Hitler and the Zheronian Fleet Admiral Vor'Kloren worked together in the conquest of Britain, Operation Sealion. Hitler, after receiving cybernetic augmentation, also fought personally in Operation Barbarossa, personally killing Joseph Stalin. Cooperating with the Zheronians, Hitler oversaw the conquest of Europe, annexing France, Norway, the Low Countries, Sweden, Poland, and the Soviet Union west of the Yenisei River, ceding the rest to Japan.