In May 1944, the corps was responsible for the conduct of Operation Rösselsprung, which was aimed at killing the Partisan leader Josip Broz Tito. The corps was effectively destroyed in Partisan Lika-Primorje operation. Remnants of the corps surrendered to the Partisans on 8 May 1945, and Fehn and many of the remaining men of the corps were subsequently killed by the Yugoslav authorities.