The Embankment was written by Wang Changling when he went to the West in his early years, and The Embankment is an old topic in Yuefu. Wang Changling lived in the heyday of the Tang Dynasty. During this period, Tang won many foreign wars and the confidence of the whole nation was extremely strong. In the works of frontier fortress poets, an impassioned upward spirit and strong confidence in defeating the enemy can be reflected. At the same time, frequent border wars also make people feel overwhelmed and long for peace, and "Out of the fortress" reflects people's desire for peace.
There has been a war on the border of China. During the reign of Kaiyuan Tianbao, Xi and Qidan, who were canonized by the Tang Dynasty, rebelled from time to time and fought endlessly. "Because Li Longji, Emperor Xuanzong of the Tang Dynasty, was dissolute, didn't care about state affairs, and was incompetent in frontier work. Recruiters stayed away from the frontier and never returned for a long time. How people long for Li Guang, a flying general with a powerful town and a dragon city, to be there today. They will never let the cavalry of the Hu people pass through us.