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?
But my people, be not afraid!
!لكن لا تخف يا شعبي
Doch sei unbesorgt, mein Volk!
Pero les digo que no teman.
Pero yo os digo que no debéis temer.
Mais n’aie crainte, mon peuple !
Ma, mio popolo,
Mas meu povo, não tenha medo!