Similar to other Galactic Republic Sector Armies, the 6th Sector Army had one of twenty Haven-class medical stations towed to them. Being a Sector Army, the unit contained 147,456 clone troopers who were divided into four corps. Like all Sector Armies, it was attached to one of twenty numbered fleets of the Republic Navy.
The 6th Sector Army was first mentioned in the new Star Wars canon in the eighteenth issue of the De Agostini magazine Star Wars: Build the Millennium Falcon, published in 2015. It first appeared in the Star Wars Legends continuity in the 1996 novel by Michael P. Kube-McDowell, Before the Storm, as the Black Sword Command. The Black Sword Command was further clarified to be the Galactic Republic's Sixth Army by the 2012 reference book The Essential Guide to Warfare by Jason Fry and Paul R. Urquhart.
The 6th Sector Army was first mentioned in the new Star Wars canon in the eighteenth issue of the De Agostini magazine Star Wars: Build the Millennium Falcon, published in 2015. It first appeared in the Star Wars Legends continuity in the 1996 novel by Michael P. Kube-McDowell, Before the Storm, as the Black Sword Command. The Black Sword Command was further clarified to be the Galactic Republic's Sixth Army by the 2012 reference book The Essential Guide to Warfare by Jason Fry and Paul R. Urquhart.