The Saga of Tanya the Evil, Vol. 4 (light novel)

A devil wanders the battlefield in the guise of an adorable young child andher name is Tanya Degurechaff! After returning from the sandy southlands, Tanyareceives an incredibly suspicious order from headquarters to embark on atraining exercise. In reality, command has sent her on a covert mission toinitiate a border conflict with the Federation. Soon the Empire finds itselfembroiled in another fight it cannot back down from, even if it means making theentire world their enemies!