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?
The Great Germanian Empire will not 
surrender to a witch from a fairy tale!
لن تستسلم الامبراطوريّة الجرمانيّة العظيمة
لساحرة من حكاية خرافيّة
Das große Reich Germania wird sich doch
keiner Hexe aus einem Märchen beugen!
¡El Gran Imperio de Germania
no se rendirá ante un cuento de hadas!
¡El Gran Imperio de Germania
no se rendirá ante un cuento de hadas!
Notre grand Empire ne va pas écouter
une vulgaire sorcière !
Noi del grande impero germanico
O grande Império Germano jamais se 
renderá a uma bruxa de conto de fadas!