Superior numbers of Imperials?? How so?? The Imperial ranks are once again being decreased by the senseless war against the Stormcloaks...which is what the Thalmor intended. Also, what provinces do they have left besides a handful of already weakened nations?? Cyrodill has lost their alliances with Hammerfell, Black Marsh, Morrowind, Elsweyr and Valenwood. The Thalmor have Alinor, Valenwood, Elsweyr as well as the entire nation of Pyandonea backing them up.
I was referring to the periods during the greatwar, years before the events in skyrim, while the empire still had staunch allies and a chance.
WGC was basically the Munich Agreement, an act of appeasemant towards the Aldmeri Dominion.
Anyone who says the empire is regaining it's strength is wrong, it is even weaker now than before due to Thalmor plots. The uprising in Skyrim is advancing Thalmor interest, that is true, but it is the direct result of accepting WGC. And there is no one else to blame other than the Emperor.