» Fri Apr 12, 2013 11:57 am
The only time in history that anyone was able to defeat Summerset Ilse and get them to surrender was when Tiber activated Walk Brass. The Maomer was able to get boots on the ground, but never could occupy it. Reman only got them to join in-name-only, if I remember correctly.
Currently, the only way for Tamriel to really have decisive victory over the Thalmor is to have divine intervention. The Thalmor know how to play it smart, are extremely patient, and are masters of espionage and subterfuge. They know how to rot an enemy force from the inside, if given the time. Overall, until there is divine intervention, it's going to be largely a stalemate.
As for your question, the nations of men, no matter what, are going to ally with each other against the Thalmor, even if they despise each other's guts. History has shown this numerous of times that when it comes down to it, man will fight against mer. So, I'd very much expect Hammerfell, Skyrim, High Rock, and Cyrodiil to form an alliance, even if it's uneasy, in order to take it to the Thalmor. And if parts are played well, the human nations can probably get enough bosmer rebel support to help against Valenwood (shouldn't be that hard, with all the purges going on) and maybe take advantage of the divided Elswyr.