The Yevethan Uprising, also known as the Day of Retribution, was a brief conflict eight months after the Battle of Endor in 4 ABY. At the Black Fifteen shipyards above N'zoth in the remote Koornacht Cluster, the indigenous Yevethans launched an uprising against the Imperial garrison. Future Darama Nil Spaar and other Yevethan nationalists timed their uprising with the evacuation of the Imperial Black Sword Command fleet to Byss and the concurrent Galactic Civil War between the Galactic Empire and the New Republic. Due to their numerical superiority, the Yevethan were able to destroy or capture much of the Imperial garrison in a short span of time.