Complex sentence: The Army deployed a battalion of the all-black 24th Infantry Regiment to guard the construction site at Camp Logan, and racial tension in the city soon rose as the black soldiers received hostile treatment in the racially segregated city.
Split into simpler sentences: The Army deployed a battalion of the all-black 24th Infantry Regiment to guard the construction site at Camp Logan. Racial tension in the city rose as the black soldiers received hostile treatment in the racially segregated city.