User blog comment:Jericho Henry135119/Which side do you prefer to be on during the Skyrim Civil War?/@comment-216.252.48.12-20120411213952/@comment-4811520-20120412161725

There is actually a second treaty of Stros M'kai keeping the Thalmor out of Hammerfell. If the Thalmor break that treaty, the White-Gold Concordant will be rendered void, and the Great War will start up again.