During his command of this corps it was involved in the invasion of Yugoslavia and the attack on the Soviet Union. In December 1941 he was appointed to command the 4th Army, but was dismissed from this post in January of the following year, and placed in the Führerreserve des Heeres (senior officer reserve pool). In September 1943 he was appointed as the commanding general of security troops for Army Group Centre on the Eastern Front, but the following month he was appointed to command the Operational Zone of the Adriatic Littoral, based at Trieste on the northern Adriatic coast.