The The Saga of Tanya the Evil, Vol. 7 (manga) — Carlo Zen

At last, the silver-tongued Tanya manages to thwart plans for a winter offensive and secures a path to the rear -- not. Instead, an imperial order launches the dumbfounded Degurechaff into the freezing war abyss, where no amount of cursing can absolve her from her new duty. But just as White Silver begins to lose trust in the Empire, and unexpected ray of hope shines down upon her. Could things finally be looking up for the young major?!