From the company website:
Despite centuries of unrest, the Free Worlds League (formed in 2271) is the oldest of all the Great Houses. Its capital, Atreus, colonized during humankind’s initial exodus to the stars, is held as the ideal of the democracy prized by the people of the League.
Then came the Jihad.
Jihad Turning Points: Atreus fleshes out the details of the conflict surrounding this pivotal world published in various Jihad Plot Sourcebooks. Additionally, players can join one of the myriad of forces fighting for control—and survival—of the Free Worlds League’s capital world.