The first time was during the battle of Xuzhou. After the Tang Corps arrived at the battlefield, because it had just communicated with the Eighth Route Army generals in Shaanxi, it was deeply admired by the Eighth Route Army's mobile warfare tactics, but it was dissatisfied with the desperate play of the national army. Therefore, he resolutely refused to undertake defensive tasks, demanded mobile combat tasks, and became the mobile strike corps of the fifth theater by default.
Sun Lianzhong stayed in Taierzhuang for several days and suffered heavy casualties. The peripheral positions of Taierzhuang were basically taken away by the Japanese army. Taierzhuang fought street battles from house to house. After several days of fighting, the Japanese army also pressed hard, compressing the 3 1 division of Chifeng City in Sun Lianzhong to the southeast corner, leaving only one third of the houses holed up. At that time, Sun Lianzhong requested reinforcements from the headquarters of the theater commander.
After receiving Sun Lianzhong's request, Li Zongren ordered Sun Lianzhong to continue to hold his ground, not to retreat from Taierzhuang, not to retreat through the canal, and to ensure the safety of Xuzhou periphery. At the same time, he quickly ordered Tang, who asked himself to be a mobile strike corps, to break away from the Japanese face to face and immediately move to Taierzhuang to reinforce Sun Lianzhong to save the war.
It's false for Tang to ask for mobile warfare, but it's true to save his strength. So after he received the order from Li Zongren, he didn't want to reinforce Sun Lianzhong immediately, but wanted to continue the movement, or continue to stop the Japanese flank attack force in situ. However, Guan Guan, the commander of the 52 nd Army of the Tang Legion, believes that the gains and losses of Taierzhuang are related to the overall situation of Xuzhou Battle. Now that Sun Lianzhong is exhausted, it must fully reinforce Sun Lianzhong and attack the Japanese from Japan.
Finally, Tang listened to Guan's advice and led troops to reinforce Taierzhuang. When Guan's troops arrived at the periphery of Taierzhuang, they began to exchange fire with the Japanese and shoot at each other. Gunfire spread from the periphery to the city. Chi Fengcheng's troops heard that reinforcements had arrived, and they had already fought with the Japanese, and their natural morale was one hundred times higher. They not only tried their best to stick to it, but also made a continuous counterattack against the Japanese army, reducing the Japanese army to only one third of Taierzhuang.
Guan saved the battle for the second time in the first battle of Changsha. After crossing the new wall river, the Japanese army broke through the national defense line and marched into Changsha. At this point, Xue Yue advocated giving up Changsha and retreating to Hengyang, attracting the Japanese main force to continue southward, lengthening the Japanese supply line, and then fighting a decisive battle with the Japanese. Moreover, Xue Yue has ordered Wu Yizhi, chief of staff, to lead the commander of the ninth theater to retreat to Leiyang in southern Hunan, leaving only one forward headquarters in Changsha.
At this time, Guan has been promoted to the commander-in-chief of the 15 army and is fighting in the 9 th theater. His troops are also the main force in the war zone. But he didn't agree to give up Changsha. He thinks that if you hit the Japanese in the north of Changsha, you can defend Changsha in name. If Changsha is handed over to the Japanese and then hit the Japanese, it will be difficult to win. Even if the Japanese can be defeated, the responsibility for the fall of Changsha is great. Therefore, Guan did not continue to withdraw south according to Xue Yue's orders, but fortified north of Changsha.
But at this time, the Japanese army kept attacking the Japanese logistics supply line in the rear, and the materials could not be supplied. However, the Japanese army ate and ate, and it was never able to break through the right-wing national army position. Subsequent reinforcements were blocked by the national army everywhere. However, the Japanese army on the front line in Changsha was surrounded by the national army, and finally they could only hastily order a full retreat. On the outskirts of Changsha, the Japanese army rushed to break through without ammunition, causing heavy casualties and the national army won the battle.