The Stormcloaks are a group of Nords who believe that Skyrim should no longer belong to the crumbling Empire. They are led by Ulfric Stormcloak (the Jarl of Windhelm), who assassinated the high king of Skyrim, and are opposed by the Imperial Army, which is commanded by General Tullius. They follow guerilla hit-and-run tactics and mostly rely on offensive magic attacks when they are in combat. They are against all who have any ties to the Imperials and as such hate groups like the Battle-Born.