This is the story of Gilded Cross. A private first-class in the guard of a village named Trottingburg. She always was strong willed, a trait that got her into the guard to begin with. But when her glory-seeking ways lead to the biggest mistake of her life, she must make a decision. Stay the way she was, or change for the better and be the catalyst for unification of the kingdoms of Elcove, and Equestria.
She just needs to show some resolve.