There were two wars going on in Yugoslavia during WW2. One was the Axis vs. the Allies. The other was a 3 sided civil war that included Chetniks, Partisans, and Ustashe. Because some Chetniks cut deals with the Italians or Germans promising not to attack them so they can fight the Partisans without worrying about the Germans attacking from another front does not make those Chetniks either part of the Axis or even its ally. To the Chetniks of Dalmatia and Lika, the Germans were as much the enemy as the Partisans or the Ustashe.