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.
Last December,
،في دجنبر الماضي
Im letzten Dezember führte das Imperium
im nördlichen Gebiet der Handelsallianz
El diciembre pasado,
El diciembre pasado,
En décembre dernier,
l’Empire a envahi les fjords d’Orse
Lo scorso dicembre, l'esercito imperiale ha sbarcato
con successo le sue truppe nel fiordo di Orse,
Em dezembro,
за прошлый декабрь