The Axis order Request of battle Hostile_encounter against the Bulgarians and Yugoslavs in this operation Military_operation comprised Cause_to_be_included some 17,000 men including the Kampfgruppe `` Langer '' with three infantry companies , one artillery battery and one platoon of tanks , Kampfgruppe `` Bredow '' with six infantry battalions , three artillery battalions and 10 tanks ) , Kampfgruppe `` Skanderbeg '' with about 7,000 men of Waffen-SS August Schmidhuber 's 21st Mountain Division `` Skanderbeg '' and about 4,000 German navy personnel making their way to the north from Greece .