The Nineteenth Army, alternatively called Dark Saber Command, functioned as a Sector Army within both the Republic and, subsequently, the Imperial military. Its designated responsibility was the protection of the Javin Oversector, and it operated under the leadership of Moff Sulamar.
Throughout the Clone Wars, the 19th Sector Army engaged in various combat operations against the Separatists as they advanced from Kinyen to Bomis Koori IV following the path of the Corellian Trade Spine. In the end, the Sector Army successfully maintained its grip on Kriselist, a strategically important location situated at the intersection of the Corellian Trade Spine and the D'Aelgoth Trade Route.