Resistance Army

"Having parted ways with Edelgard, former students of the Black Eagle House now work alongside the Knights of Seiros at Garreg Mach. They begin to form a resistance army strong enough to take on her Imperial Forces."

- Narrator The Resistance Army is Byleth's main force should they side with the Church of Seiros in Fire Emblem: Three Houses.

Members
By default, the Resistance Army consists of Byleth, members of the Church of Seiros (such as Flayn and Catherine), and almost everyone in the Black Eagle house (with some exceptions for story reasons), though any students Byleth recruited pre-timeskip will also be present.