You can check out the Trails of Cold Steel – Northern War anime website here, where you can find all the relevant information for the production set to air early 2023, by Tatsunoko Production.
The summary as translated by Gematsu is as follows:
Lavi is a girl born and raised in North Ambria State, the poorest region in the northwestern part of Zemuria.
To protect her hometown, and to prove she is different from her grandfather Vlad—who was once hailed as a hero, but betrayed North Ambria—she volunteers to serve in the renowned Northern Jaegers, the largest jaeger corps in the continent.
Devoted to her duties to the point that she repeatedly breaches discipline, Lavi is grouped into a platoon with Marty, Iseria, and Talion and ordered to undertake a reckless undercover mission into the Erebonian Empire.
- Lavian Winslet (voiced by Makoto Koichi)
- Martin S. Robinson (voiced by Yuichi Nakamura)
- Iseria Frost (voiced by Sarah Emi Bridcutt)
- Talion Drake (voiced by Yuuki Ono)
While you wait, Trails from Zero has finally launched worldwide after 12 years since its original release in Japan in 2010 for more of the amazingly lengthy series Falcom has crafted thus far.