Everlasting Sandstorm... at Hogwarts

After the Chunin Exams, Suna and Konoha are split off to recover.

However... a unknown organization who recently had appeared around Sunagakure had attempted to weaken its forces by capturing their "human weapon", Gaara. When a simple teleportation jutsu goes wrong and our jinchuriki of Shukaku is dropped on the Hogwarts grounds, what will the wizards of Hogwarts and Gaara do?

Between Shukaku's screams in Gaara's head for bloodshed and the war to come around the corner of the Wizarding World, which role will Gaara play?
Will he join the ranks of the Order or submit himself the the Death Eaters and old Voldymoldy?
Will he protect Harry Potter or oppose?