In 1 BBY, during the Galactic Civil War, a battle was fought on the Inner RimplanetDatar. While the Rebel forces were completely wiped out, the Galactic Empire's forces failure to capture any prisoners meant the battle was also a failure from the Imperial perspective.
In 1 BBY, Vice AdmiralSlenn was part of an Imperial task force assigned to hunt down Rebel bases. The Empire's objectives were to expose the Rebel's supply network, obtain prisoners for interrogation, and discover where they had been shipping weapons.[1]
When Slenn's forces led from the Star DestroyerVengeance attacked a Rebel outpost on the Inner Rim[4]planet of Datar, the Rebels had advance warning of the attack. Without the element of surprise, the Imperials were unable to quickly move in and take prisoners. Instead, the Rebels fought to the last man.[1]