Sorry Klansman, didn't take Snowflake 101--wasn't interested in cross-burning, etc.  The Military Officers Association of America remembers what you ignore:

"Fall and winter temperatures routinely plunged many degrees below zero...the black soldiers lived in tents while white soldiers...were housed in wood shelters. During the coldest periods, the black soldiers started their days...examining each other's faces for...indication of frostbite."

"African-American soldiers...were...prevented from going into any villages they passed...the African-American engineers...were given inferior construction equipment or no equipment at all...heavy equipment was delivered to less-experienced white regiments, leaving the black engineers to work with hand tools."

One black unit built a bridge across the 300 ft gorge of the Sikanni Chief, BC rapids in just 72 HOURS.  They worked continuously--even at night--in near freezing water with only hand-tools and bodily strength.  The whites watched.