When America’s Civil War ended in 1865, because it had been a rebellion against the government and the Constitution, federal troops were stationed throughout the territory of what had been the Confederate States of America. This was designed to secure the re-uniting of the U.S.A., providing the franchise and opportunity to hold office for those who had remained loyal. It also disenfranchised and barred those who from office those who had instigated and/or participated in the rebellion. That was what Reconstruction was about. The important side effect was that Black men were able to vote and hold office.