They weren't shy about ignoring other legalities, if GOPconservative is to be believed. And why pass it three years later? Unless, of course, blacks in the army were rare, unofficial, in a support role only, and not acknowledged by the high command? You think that might be it?
Well if that were it, a whole bunch of yankees were lying about being shot at then by blacks. Well that and you're calling Frederick Douglass a liar along with more than one union officer