Taskeen was the commander of the Rebel forces on Abridon in 3 ABY, where he convinced Brenn Tantor, the Imperial general who had conquered his forces, to defect to the Rebel Alliance after Tantor was ordered to massacre a refugee camp. After Tantor's defection, Taskeen supervised him, overseeing such operations as the theft of an All Terrain Armored Transport and the reconquest of Abridon. Taskeen was also one of the Rebel generals present at the Battle of Endor, liaising with Tantor yet again. That working relationship continued into the New Republic, as Taskeen commanded the conquest of Coruscant with Tantor in control of tactical operations underneath him.