Colonel Jeschke remained with 8th Marines until the beginning of May 1943, when he was relieved by Colonel Elmer E. Hall. He was subsequently transferred to the United States and assigned for a brief period to the Headquarters Marine Corps. Jeschke was subsequently appointed Force Marine operations and training officer on the staff of the Western Naval Task Force located in the Mediterranean under the command of Rear Admiral Henry Kent Hewitt. In this capacity, he participated in the planning of the Invasion of Sicily in July 1943 and received his second Navy Commendation Medal for his efforts.