The Saga of Tanya the Evil, Vol. 21 (manga)

The Empire has long watered its fields with conflict, but now they are in for a flood–Tanya's predicted World War has come at last. The Imperial pursuit follows Republican forces-in-exile to the deserts of the Southern Continent...Another front could mean another yearslong quagmire and another vast sacrifice of human resources. Or if Tanya and Major General Romel have their way, it might mean a swift advance and one more continent conquered...