The Empire is launching a seemingly foolish attack on the Entente Alliance in the middle of winter.  They lack the supplies to successfully invade.  Tanya realizes that this attack is a feint intended to distract from a fjord landing mission.  Sure enough, she is sent to lead the invasion of the fjords, and silence 20 cannon emplacements in time for the fleet to land and the Imperial forces to disembark.
Why won't you stop them?
لماذا لم توقفهم؟
Warum haben Sie
ihn nicht aufgehalten?
¿Por qué no lo detuvieron?
¿Por qué no lo han detenido?
Pourquoi ne pas les avoir arrêtés ?
Perché non intende fermarli?
Por que não os impediu?
Почему вы их не остановите?