-Nation name: SKyrim
-History (focus on the years 4E 201 to 205, anything before that is pr-established canon): The Dragonborn, Giles, is a Breton who found himself in the civil war between the Storm Cloaks and the Imperials. He ended up infiltrating the Dark Brotherhood, joining the Stormcloaks, assassinating Jarl Ulfric and defecting to the Empire, where he assassinated General Tulius. He then wiped out the Dark Brotherhood and took the mantle of Skyrim's High King, and managed to diplomatically solve the situation in the Civil War with liberal use of the various factions, influence from the Grey Beards,, and others. He defeated Alduin, Harken and Miraak, and returned to Skyrim as it's High King. 

He even managed to make friends and establish warm relations with the savage Forsworn. 

[B]-Leadership [/B]: Monarchy. King Giles rules everything through the other Jarls. 
-[B]Allegiance [/B](you can change this throughout the RP) 
-[B]Military [/B]: 
-[B]Dawn Guard Fortress[/B], the guards throughout the Holds of Skyrim, the Mages College of Winterhold, the various, former Storm Cloaks, the Orcish Strongholds, and even the Forsworn gladly hold ranks in the army of Skyrim. With the Empire driven out by key assassinations and inability to hold a stable foothold in the region, they were inevitably kicked out, but not entirely by the Dragonborn. The Vigilants of Stendar were re-established by the Dragonborn and although their first duty is to Stendar and the Vigilants, they will answer the call to aid Skyrim.
Mercenaries of all other races formally not even allowed in Skyrim's cities and towns are now wandering the streets as guards and sell-swords.. 
[B]-Culture/society:[/B]
The Culture is mostly Nord, with the racially accepting Breton Dragonborn of legend changing the attitudes of the local peoples towards other races. The races are still mostly segregated but the Breton Dragonborn's deeds has changed Skyrim for the better. Talos worship is re-instated, officially, and the Thalmor Judiciars were wiped out to the last man from Skyrim.