Revolutionary Order of Khar'shan

The Revolutionary Order of Khar'shan (ROK) is a batarian splinter group created by Ka'hairal Balak in his attempt to overthrow Governor Grothan Pazness and seize control of the Batarian Remnant. Though Balak believed that only he had the best interest of his species, he and his followers were dissatisfied with Pazness' leadership and saw him as a puppet. The ROK led several aggressive campaigns against humanity and the Interstellar Republic, including terrorist attacks and slave raids.

Novel

 * Mass Effect: A Hero's Legacy (First appearance)