Army Fluff: A History of the Ghostwind Corsairs

Do you have a backstory to your army? What is it? I've been thinking a lot about fluff since reading the Iyanden supplement and have endeavored to improve my own armies fluff. While it makes little difference in terms of tournament play, I do like the narrative aspect of 6th edition and having your armies background figured out helps spread that narrative and ultimately, to me at least, it makes my games more flavorful and interesting.