By: Nick Plunket The Political War The North and South fought over politics, mainly the idea of slavery. Basically the South wanted and needed it and the North did not want it at all. The South was going to do anything they could to keep it. This was the issue that overshadowed all others. At this time the labor force in the South had about 4 million slaves. These slaves were very valuable to the slaveholding planter class. They were a huge investment to Southerners and if taken away, could mean massive losses to everyone. Slaves were used in the South as helpers in the fields in the cultivation of tobacco