Complex sentence: After an initial mix up of orders, Howley's follow-on assignment became Paris, where he commanded a combined delegation of 150 officers and 200 enlisted men, and entered Paris along with the first troops.
Split into simpler sentences: After an initial mix up of orders, Howley's follow-on assignment became Paris. There he commanded a combined delegation of 150 officers and 200 enlisted men, and entered Paris along with the first troops.