What did the soldiers do after the US Civil War?

They returned back to their homes living regular lives as they did before the Civil War began. some helped reconstruct their towns

many place the north forced out and took over much of the land and industry of the south forceing most of the southerns out stripping them of wealth and leaving many homeless,ugly period in wich the govnerment step in and bascily did a massive redisributed the wealth. ...at gun point.