At some point you may wish to try out a different path for your nation. By resetting your nation’s advances, you can free up the advance points that your nation has earned for all of the levels it’s gained, so that you can choose a new set of advances. You might use this to correct mistakes, or just to try out some different strategies.
To reset your nation’s advances, open the Nation panel’s Settings tab, then click (or tap) “Reset Advances”. The first time that a nation resets its advances, there is no cost. The second time costs 100 credits, and each later time costs an additional 100 credits. Note that only a nation’s Sovereign or Cosovereign can reset its advances.