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?
Germania is becoming an 
enemy of the whole world.
تُصبح جرمانيا عدوّة العالم أجمع
Germania macht sich gerade
die ganze Welt zum Feind.
Germania se vuelve un enemigo del mundo.
Germania se vuelve un enemigo del mundo.
La Germania est en passe de devenir
l’ennemi du monde entier.
La Germania si sta inimicando il mondo intero.
A Germânia está se tornando
 inimiga do mundo todo.