The Saga of Tanya the Evil, Vol. 8 (light novel)
In Omnia Paratus

When Zettour tries his best to caution against the reckless plan to strike at theFederation's vital resource fields, he soon finds himself "promoted" to a fielddeployment on the eastern front. Meanwhile, as the ill-advised Operation Andromedapresses on, commanding officer Tanya must fight another bitter battle despitedwindling supplies, poor communication, and exposed flanks. With retreat expresslyforbidden and time running out, the only way to survive is to win...