They just became multi-ethic in their way of thinking. And interesting the way even back then they used service in the military as an excuse to restrict gun ownership for civilians. You wanna play with guns? Join the Military!
No one ever entertained the idea of indiscriminate arming of blacks, without putting them in ranks, and subjecting them to control. There could be no inhumanity greater than that of placing arms in the hands of the blacks of the South, and letting them roam over the land, committing indiscriminate murder and devastation. It was to avoid that that he would have the negroes mustered into service The blacks would otherwise fall Into excesses which would have to be corrected by the strong arm of the nation.