Complex sentence: On 20 January, 1916, he was appointed to the commander of the 14 th Division, on September 30, to the commander of the 5 th Division and fought in the Caucasus Front.
Split into simpler sentences: On 20 January, 1916, he was appointed to the commander of the 14 th Division. On September 30 to the commander of the 5 th Division and fought in the Caucasus Front.