During the Northern Wei Dynasty, Mulan joined the army for his father and returned with honor. Ten years later, Rouran broke the border again, and Mulan resolutely returned to the battlefiel... Read allDuring the Northern Wei Dynasty, Mulan joined the army for his father and returned with honor. Ten years later, Rouran broke the border again, and Mulan resolutely returned to the battlefield.During the Northern Wei Dynasty, Mulan joined the army for his father and returned with honor. Ten years later, Rouran broke the border again, and Mulan resolutely returned to the battlefield.