Basil Davidson: PARTISAN PICTURE "The chetniks of Ozren had become famous for their battles with the Ustashe. But then corruption had crept in, partly through laziness, partly through the influence of local pops (Serbian Orthodox priests), partly caught from the prevailing mood of compromise in Serbia; and first they had stopped fighting, and then, after Tosha had left them for Kosta, they had turned on the partisans. And now the few that were left (for Tosha, knowing the men and the country, had liquidated the main body of them) were a sort of home guard in the pay of the enemy. They were afraid of Tosha; and they restricted their activities to spying for the Germans and sniping at our wounded."
https://www.znaci.org/00001/4_14_2_30.htm IZVEŠTAJ ČLANA ŠTABA MOTAJIČKOG ODREDA OD 9. FEBRUARA 1943. NAČELNIKU ŠTABA KOMANDE BOSANSKIH ČETNIČKIH ODREDA O EFEKTU PAKTA IZMEĐU ČETNIČKIH ODREDA I USTAŠKO-DOMOBRANSKIH JEDINICA