Die Wacht am Rhein I (ラインの護りI) is the third chapter of Youjo Senki Manga.
Tanya has received her reassignment from the technology department and will depart to the frontline against the Republic of François. She is named leader of a flight in the 205th Assault Mage Squadron under the command of the Squadron commander Lieutenant Iren Schwarzkopf. After a short briefing of the Rhine front situation she went to greet her new squadron comprising of two volunteers and a conscript Visha (Viktoriya Ivanovna Serebryakov) to which she expresses some respect for performing her duties as citizen. Visha's first impression of Tanya was that of a vampire due to how she gazed at them, much like a cat toying with a mice.