Izetta is powerful enough to fight whole armies, but her strength is limited.  She can only use her abilities near certain ley lines, and outside them, she's no different than a normal girl. When the Germanian army attacks in a spot far from these ley lines, the duchy is forced into a corner: how can they repel these foes without giving up the secret of Izetta's strength?
Our forces were defeated by 
the witch at Veile Pass again.
هُزِمَتْ قوّاتنا بواسطة السّاحرة في معبر فيالي مجدّداً
Am Bergpass Veile
La bruja venció a nuestras tropas
en el Paso de Veile.
La bruja venció a nuestras tropas
en el Paso de Veile.
Notre armée aurait encore été écrasée
par la sorcière au col de Bärl.
Mi dicono che al passo di Veal
Nossas tropas foram derrotadas de 
novo pela bruxa na Passo de Veile.