Complex sentence: The attack apparently caused serious damage, as "U- 105" did not sail again until 23 November 1942, when, following another change in command, "U- 105" left Lorient under the command of Oberleutnant zur See Jürgen Nissen.
Split into simpler sentences: The attack apparently caused serious damage, as "U- 105" did not sail again until 23 November 1942. Following another change in command, "U- 105" left Lorient on 23 November 1942 under the command of Oberleutnant zur See Jürgen Nissen.