Complex sentence: He withdrew from Dehradun and moved his force of about six hundred men, including dependents, to a hill north-east of the city, where he took up a position in the small fort of Nalapani, Khalanga.
Split into simpler sentences: He withdrew from Dehradun and moved his force of about six hundred men, including dependents, to a hill north-east of the city. He subsequently took up a position in the small fort of Nalapani, Khalanga.