User blog comment:Cyrice1/Stormcloaks or Imperials/@comment-1702118-20120711081016

I think one of the greatest pieces of evidence for the failure in the Stormcloaks cause is in fact Ulfric's confession. If you finish the Civil War before finishing the Main Quest line when you go to Sovngarde to fight Alduin you meet Ulfric in the Hall and he actually regrets his actions for rebelling against the Empire as he felt it was weakening Skyrim for their eventual war against the Thalmor.