Strode and Edwards' portrayal of African American soldiers is based on the 24th Infantry Regiment, which was still racially segregated in Korea. All Black units were integrated in the summer and fall of 1951 and all Black units were integrated and closed out on 1 October 1951. Like its cinematic portrayal, the real regiment was poorly trained, poorly equipped and poorly led. More than once when this all-black unit was placed on the front lines, a unit in reserve was positioned directly behind because they were expected to break. The regiment was finally considered so unreliable it was disbanded. Its personnel were reassigned to other combat units just as in the film, which portrays Edwards' character - with good leadership - becoming an effective soldier.