User blog comment:AveryWood/Reasons Why Going With the Empire is Better/@comment-3472264-20120817033226/@comment-1786741-20120817054706

Problem with that is as soon as the Thalmor see the Empire disregarding their treaty, they might outright attack them. Should it be found out that Tullius was conspiring against them, the'll probably end up killing him and replacing him with a puppet.