" at first they were denied the right to fight by a prejudiced public and a reluctant government. Even after they eventually entered the Union ranks, black soldiers continued to struggle for equal treatment. Placed in racially segregated infantry, artillery, and cavalry regiments, these troops were almost always led by white officers."
"natural resources" "natural resources" and a thriving "labor force" would all be factors. It should also be noted that the textile industry was already doing well.