Board Thread:Lore Discussion/@comment-24587225-20150902024621/@comment-28701842-20160907223426

As much as I dislike the Stormcloaks, even I admit that Ulfric is no Thalmor agent. He was basically wound up and set loose by the Thalmor to enact their purpose on the land. That being said, they do have ways of contacting him and occasionally provide support for the rebels. My thoughts are that this method of contact runs through one of Ulfric's lieutenants.