sentences:  The plans included the 12,000 Chetniks under Jevđević's command, and on 23 February 1943 he concluded an agreement with the Germans that they would not cross the Neretva River and that contact between German and Chetnik troops would be avoided.Early in the operation, Jevđević concluded an agreement for cooperation with the commander of NDH troops in Mostar.Later in the operation Jevđević requested, through the Italians, the assistance of the 7th SS Volunteer Mountain Division Prinz Eugen in defending Nevesinje, which faced severe pressure from Partisan forces that had broken through the Chetnik lines at the Battle of the Neretva River.