User blog comment:Longdead97/Ulfric's war effort & gaining support. Smart move or no?/@comment-6044976-20130325074008

If Ulfric was to attempt this he would first have to take the Reach from the Empire and if he succeded at doing that then he would probably no longer need the help of the Forsworn.

Not to mention the fact that they're barbaric and brutal and would most likely attack on site.