战火烧身虽然岳飞战胜了这批匪寇,但是有一类人现在岳飞根本就没有办法,那就是北方强大的金军。金军再次南下,主力就是后来世人皆知的金兀术,相对于粘罕一批人来说,兀术是新兴一代的将领,野心较之粘罕有过之而无不及。兀术一路从北南下,虽然后方还有宋朝的游击军,但对于金军来说,那些小部队根本起不到什么作用,兀术舍之而不顾。兀术的这种战略,首先就把杜充吓到了,因为,这一时间宋朝在河北基本上无人,在淮北的军队也是少得可怜,主力部队基本上都压缩到长江南北了,势力范围明显地压缩。在这样的情况下,杜充意识到保守开封城的危险性。本来守卫开封城的部队还有几十万人,可是 Although the war burned Yue Fei defeated these bandits, but there is a class of people now Yue Fei simply no way, that is, the powerful northern Jin army. Jin Jun once again south, the main force is later known as the Wushu, vis-vis a group of people, the Wushu is a new generation of generals, ambition vis-à-vis more than the non-existent. Wushu all the way from north to south, although the back of the Song Dynasty guerrillas, but for the Jin Jun, those small forces simply did not play any role, regardless of Wushu homes. Wushu this strategy, first of all, put Du charge scared, because at this time the Song Dynasty in Hebei basically no one, in Huaibei's army is also pitiful, the main forces are basically compressed to the north and south of the Yangtze, the sphere of influence Obviously compressed. In such circumstances, Du Chong realized the danger of keeping the city in Kaifeng. There were still hundreds of thousands of troops who had been guarding the city of Kaifeng, however