 "U-43" then made for her new home port at Lorient in France, where the 2nd U-boat Flotilla had relocated in June after the fall of that country, arriving there on 18 October.Her commander, Wilhelm Ambrosius, was promoted to "Korvettenkapitän" on 1 November, and left "U-43", going on to take command of the 22nd U-boat Flotilla in January 1941.Command of the U-boat passed to "Oberleutnant zur See" Wolfgang Lüth, who would go on to become the second most successful German submarine commander of the war.