Board Thread:Lore Discussion/@comment-3225355-20150107041151/@comment-27007772-20150108152753

When you play through the Pact quests in ESO you realise all that's holding the Pact together are the three leaders; Jorunn, Eyes-Of-Steel, and Noramil. When they die, it'll crumble quickly.

The point of what he was saying is that the Three-Banners-War was before Tiber Septim was even born, so there is no way he could figh tin it.