On Deshun Battle between the Song Dynasty and Jin Kingdom

the Deshun Battle, happening in the Shaoxin later years during Gaozongs reign, is one of the important battles that decides the success or failure of war between the Song Dynasty and Jin Kingdom. The author expounds the impact of the Deshun Battle on the western battlefield and even the whole war situation between the Song Dynasty and Jin Kingdom from the angle of the fighting quality of the Song army in the west, the strategical plan of the courtiers who advocate marching northward to fight and the important strategical position of Deshunjun, and holds that the key reason for the Song armys failure is that the general in charge has to obey what the central government has to say and thus has no say in carrying out the battle.