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?
witches would be ruling the world right now.
لرأيت السّاحرات يحكمنَ العالم الآن
wären inzwischen Hexen zu
den Herrschern dieser Welt geworden.
las brujas controlarían el mundo ahora.
las brujas controlarían el mundo.
la logique voudrait
qu’elles contrôlent le monde.
a quest'ora quella strega sarebbe diventata
la dominatrice del mondo.
as bruxas estariam no 
controle do mundo agora.