From BA Wiki

How to become a Bellum Aeternus Member

To become a member of Bellum Aeternus, there are several steps you must follow.

1. Have your character(s) invited to the group, in-game
2. Register on the website at www.bellumaeternus.com.
   1. Create an Account and Authorize it
   2. We have multiple forums for each game.
      1. To activate yourself in the correct one(s), make a post in the Access Request forum.
3. Read The Path of Bellum Aeternus
4. Read the Province Specific Path pointed to by the Path.
5. Sign the Pledge Appropriate to your Province.