Besides the 7th SS Volunteer Mountain Division Prinz Eugen the Axis forces consisted of several battalions of Bulgarian 9th Infantry Division also. All of them commanded by Artur Phleps. The Yugoslav forces targeted in the Operation Kopaonik consisted of Rasina Corps of Chetniks of Draža Mihailović under command of Dragutin Keserović. The operation failed because Keserović was informed about the movement of the Axis forces and successfully retreated his forces before the Axis forces surrounded the targeted region. Still, Himller was pleased with participation of the Prinz Eugen Division and immediately after the operation ended he visited it for three days.