Why did Guo Jing in the Southern Song Dynasty not die as long as he was guarding Xiangyang?

In Jin Yong's novels, Guo Jing kept Xiangyang for decades, and Yuan Jun also attacked it foolishly for decades. Although Guo Jing is a fictional character in the novel, in history, Meng's trip to Xiangyang is real, and it took him 38 years to win Xiangyang. Then we have to ask, all roads lead to Rome. Even if modern traffic is not good, it is not impossible to find a second way to attack Lin 'an, the capital of the Southern Song Dynasty.

Can only say that Xiangyang's geographical location is really important. You should remember Zhuge Liang's Longzhong for Liu Bei, right? The center of this is the occupation of Jingxiang area, as a springboard to attack China in the north, Jiangnan in the east and the land of abundance in Xichuan in the west. Especially in the period of unification and stalemate in the Northern and Southern Dynasties, Xiangyang was particularly important. As can be clearly seen from the map below, the north and south of China are clearly divided into two parts, in which the Qinling Mountains and the Yangtze River are connected, and only Xiangyang has an opening.

Including a small series of slag maps (dark black represents mountains and blue represents rivers)

The most important thing in modern peace is grain and grass. The so-called military forces have not moved food and grass first. The modern transportation of grain and grass is another difficulty. If you pass the defense indirectly from the lower reaches of the Yangtze River, because the Yangtze River is relatively wide, relying on modern wooden warships, you have to transport food and soldiers back and forth several times, wasting hours. The enemy may suffer serious losses under random sniper, and the gains and losses are equal. Moreover, the water army of the northern regime has always been much weaker than that of the north, and Meng suffered a lot in front of the water army of the Southern Song Dynasty. It is not realistic to cross the Qinling Mountains in modern marching and fighting. The civilian worker walked from the grain depot to the Rong Huo line, and he could eat all the food, let alone feed the ranks. On second thought, it is more cost-effective to bite Xiangyang. However, the northern regime will not let you attack foolishly. Basically, when the northern army left Xiangyang, it faced the difficult scene shown in the picture below.

Meng Zhanyuan's fighters must be on the verge of collapse.

It is also feasible to bypass Sichuan, but Li Bai has long said that it is difficult to get to the sky through the Shu Road. Mongo Khan doesn't believe it, but he must try, and the consequence will be to die in the fishing city in the west. Next, Kublai Khan also enjoyed the benefits and turned to continue to besiege Xiangyang. What the hell? As a result, compared with the strength of the Southern Song Dynasty, the Mengyuan regime at that time was 5 mines against 2 mines, and Xiangyang eventually fell. As a result, Meng went down the Yangtze River and went straight to Lin 'an, and the Southern Song Dynasty slowly fell.

Tired of watching it, send a joke to make you happy and relaxed.

We must have enough courage to resist.

A bus was hijacked, the gangster picked several women and got off, and the whole bus was indifferent! At this time, a woman suddenly jumped out of the car to fight with the gangster, so a car full of people swarmed and finally subdued the gangster! The reporter interviewed her and asked her what courage made her dare to fight with gangsters. She said angrily that a car full of women had been picked, leaving me alone. Who are you kidding?