The Kosovo Operation Military_operation ( October 15–November 22 , 1944 ) was a series of military operations Military_operation leading up to one final push Influence during World War Military_operation II , launched Process_start by the Bulgarian army ( commanded Control by Major General Kiril Stanchev ) with the assistance Assistance of Yugoslav and Albanian Partisans to expel Removing German forces from Kosovo and prevent Preventing_or_letting the retreat Escaping of German forces from Greece .