I know it's a bit cliche but I felt like doing a story like this anyway and I believe I've brought something different to the table here, something may catch you off guard. Queen Chrysalis, the ruler of the once great changeling army attempted to invade Canterlot, going all out and using as much force as needed to capture Canterlot and overthrow Celestia. They failed and now have been left in a desolate wasteland, grieving and wounded.
I would also like to thank my editor 0_0