A young Ra Gada noble by the name of Hauron unifies the splintered elements of Redguard society in Sentinel and defies the Empire declaring independence. The Elder Council seeing the Empire unravel before them decide on solving the issue of who the next ruler of the Empire would be and the new rebellion in Sentinel by calling forth any noble willing to vanquish the Sentinel forces and naming Dynastic rights to the Empire as the prize. King Hlaalu Helseth of Mournhold, Elysana of Wayrest and Ocato all answer the call. The coalition is difficult to maintain as none of the leadership trusted each other. Betrayal is rampant and any sort of naval blockade is shattered by the Sentinel navy. Hauron proving to be a charismatic leader enters into an alliances with the desert tribe of Barca and Ayuub. Along with the roaring cannons of Sentinel the dis-unified coalition of the Empire are driven away from the city. After weeks of skirmishes and maneuvers in the wild the war culminated in the final battle of Lainlyn forest.
The Empire's forces taking up defensive positions are met by the Ra Gada general, Saladin who had secretly been Hauron in disguise, his double acting to feint the enemy. As the battle raged on two transcendent vampires in the service of the Khojmari manage to bring forth a Void sleeve using an ancient sword and the corrupted soul gem of Azura in the forest near by. A phenomenon which veterans of the battle could only describe as a living nightmare ensues causing all parties participating in the battle to withdraw. In the end Sentinel's Independence is declared and agreed upon by the Elder Council. The new Kingdom of Sentinel rules parts of western Hammerfell. The northern portion becomes a Terra incognito of tribal khanates and chiefdoms between the redguards and the nomads while the southern coastal cities maintain friendly relations with the Empire and in it's sphere of influence although completely autonomous.
As the War of the Wolves was fought, the Aldmeri Dominion prompted by supposed attacks of the Khajiit, invaded Elseweyr and planned on sweeping them aside and drive straight north to the Imperial City. Instead they had become bogged down in a vicious cycle of skirmishes and counter skirmishes. Along with that much of the Bosmer nobility seem displeased with their new rulers who seem to act a bit too directly on their daily lives as opposed to the Empire who simply let them be as long as order was maintained.
4E 2: At the start of the 2nd year of the Fourth Era, Queen Elysana is the sole ruler of her throne encompassing all of High Rock. Unfortunately for her, the throne she sits on is as unstable as it is tall. The recent campaign by Prince Consort Lord Woodborne (actually an impostor put in place by Elysana to maintain good relations with Orsinium) against western Skyrim ends in the failure and complete route of his entire army. Gravely wounded he is later found dead in his own room in Wayrest. This prompts a loose confederation of Nords to invade High Rock and either by alliance or by force manage to capture large portions in the east. Queen Elysana calls upon her Marshall of the Armies, a young and arrogant but capable noble by the name of Tudor. With a smaller force, in large part made up of locals of Dunkarn Haven, he uses a defensive position to stave off the Nordic assault sending them in full retreat to Raven Spring where they sit and consolidate their base of power.
Meanwhile in the west, the Aldmeri Dominion in the west had accepted the vassalage of the Direnni as well as offer Daggerfall political and limited military support. Due to the resources of the Aldmeri Dominion being spread out they are not capable to mount a full invasion on their own, although certain nobles of the Dominion have chosen to act on their own and give aid. Around Daggerfall rally all those who view Elysana's rule of the whole of High Rock as tyrannical.