During a current game I am playing as the CSA I have been making advances into Illinois reaching as far north as Springfield and Tolono. The loyalty level for the state was sitting at 7% for me. I decided to apply martial law to help bump the loyalty level.
The first turn after I did this the loyalty for the state dropped to 2% and stayed there for a couple of months until I decided to move back to St. Louis. I thought by applying martial law the loyalty would gradually creep up to at least 15%.
Does loyalty tend to drop after using such a drastic measure before then rising? Or is it possible that the population will just not give you their loyalty if you do this?