 The first formal and direct agreement between the German occupation forces and the Chetniks took place in early October 1943 between the German-led 373rd (Croatian) Infantry Division and a detachment of Chetniks under Mane Rokvić operating in western Bosnia and Lika.The Germans subsequently even used Chetnik troops for guard duty in occupied Split, Dubrovnik, Šibenik, and Metković.NDH troops were not used, despite Ustaše demands, as mass desertions of Croat troops to the Partisans rendered them unreliable.