In the past years of the War of Resistance Against Japanese Aggression, the army, especially the East China Field Army of the New Fourth Army, there was a saying that "Chen does not leave Su, Su does not leave Chen" From this, we can see the golden partnership relationship between Chen Yi and Su Yu.
Chen Yi and Su Yu were an absolute golden pair, one of them was a general and the other was a commander, and they handled the War of Resistance Against Japanese Aggression and the War of Liberation in an orderly manner. At the same time, the two are also close comrades-in-arms, and they have a very good personal relationship with each other.
However, even the two better ones had argued, and at that time, how did Chairman Mao deal with it?

Chen Yi's friendship with Su Yu
The relationship between Chen Yi and Su Yu can be traced back to the period of the Great Revolution in 1927. Chen Yi, one of the ten founding marshals of China, and Su Yu, the head of the generals, both of them participated in the revolution very early, and at the time of the Nanchang Uprising, Su Yu was the head of the guard squad, and Chen Yi was the instructor of the guard regiment.
In fact, it can be seen from here that Chen Yi is Su Yu's old superior and old leader. However, at this time, Chen Yi did not have much impression of Su Yu, and what really made Chen Yi remember Su Yu was during the first anti-encirclement and suppression period, when Su Yusheng captured Zhang Huizhen, commander of the Kuomintang 18th Division, and successfully let Chen Yi remember Su Yu, a young man. It was also here that Chen Yi began to observe Su Yu and discover Su Yu's military capabilities.
In fact, Chen Yi is not from the military background, in the field of military command, Chen Yi can be said to be a "halfway out of the family", before he went to Jinggangshan to meet the division, he was mainly engaged in the political work of the army, and then he served as the commander of the New Twelfth Army, responsible for expanding the army rather than carrying out front-line field work, but this does not mean that Chen Yi does not understand military command.
For example, after the failure of the Nanchang Uprising, Chen Yili defied public opinion and decided to go to Jinggangshan to meet Chairman Mao, which shows Chen Yi's overall view.
Later, in 1938, the central government decided to develop a base area in northern Jiangsu, and Chen Yi, who was the commander of the New Fourth Army at the time, tried to dispel the controversy in the New Fourth Army, chose to carry out the orders of the central government, and finally successfully won the Victory in the Battle of Huangqiao, successfully opening up the situation in central China.
The friendship with Su Yu was really cultivated during the War of Resistance Against Japanese Aggression, when Chen Yi served as the commander of the Jiangnan Command of the New Fourth Army, and Su Yu was the deputy commander, at that time, Chen Yi specifically found Su Yu and said, "I fully trust your ability, militarily you are still the main command, I give you power." Of course, although the front-line war was mainly decided by Su Yu and others, Chen Yi still played the ability of a marshal.
During the Battle of Menglianggu, Su Yu asked Xu Shiyou's 9th Column to deploy, but Xu Shiyou planned to bargain with Su Yu on the grounds that the loss was too large, and after Chen Yi learned of this matter, Chen Yi directly called xu Shiyou angrily and shouted: "Commander Su Yu's opinion is my opinion, and I do not allow you to bargain again!" In the end, Xu Shiyou accepted Su Yu's dispatch and deployed according to the plan.
Su Yu also had the deed of "letting commander" to Chen Yi.
Su Yu's attitude towards Chen Yi
Su Yu felt admiration for this old superior from the bottom of his heart.
In 1948, when the Central Committee of the Communist Party of China decided to dispatch Chen Yi to the Central Plains Field Army, and the commander of the East China Field Army was replaced by Su Yu, Su Yu specially sent a telegram to the Central Committee, hoping that the Central Committee would "leave General Manager Chen behind, and the East China Field Army cannot do without General Manager Chen." After that, he telegraphed Chairman Mao and told Chairman Mao that he would still serve as deputy commander.
Of course, for Chen Yi, Su Yu also had his own opinions, that is, the "Chen Yi Su Yu Dispute" that is often talked about now.
It was in 1946, when the domestic armistice agreement was slightly fixed, and the people were looking forward to the hard-won peacetime, but suddenly chiang kai-shek mobilized 300,000 troops to launch a siege against the liberated areas of the Central Plains of our army.
At this time, Chairman Mao telegraphed Chen Yi, Deng Xiaoping, Liu Bocheng, and others to discuss whether to carry out the operational plan of "attacking operations on the southern front."
This plan was top secret at that time and was not known to outsiders, and Chen Yi and others basically chose to support Chairman Mao's battle plan after reading it, especially Chen Yi, a staunch "Maoist", who in his view was crucial to the prospects of the People's Liberation Army and the domestic situation.
But in fact, the plan was unrealistic at the time. When Su Yu received the telegram from Chen Yi and Chairman Mao, he was commanding the campaign in northern Jiangsu, but he intuitively felt that this plan was irrational, so he sent a telegram to the CPC Central Committee to know his own views, saying: The Central China Field Army should continue to fight in central Jiangsu and be able to move west to Huainan immediately, otherwise it would easily cause difficulties in supply.
Coupled with the fact that "the public grain income in the Soviet Union and China is rich, but the population is small, if the Soviet Union and China are developed well, it will have a huge role in the subsequent operations."
Su Yu did not agree with Chen Yi's decision, and on this matter, he and Chen Yi had a huge disagreement.
Chairman Mao proceeded from reality to resolve differences
As the most important general under Chen Yi, Su Yu's opinion was worthy of attention. Therefore, when Chairman Mao received Su Yu's suggestion, he immediately analyzed it and found that there was indeed a certain feasible point, so he telegraphed Chen Yi, Deng Xiaoping, and others on the front line to "suspend the movement of troops and wait for instructions."
Although Chen Yi had differences with Su Yu on this matter, he absolutely obeyed Chairman Mao's orders. After that, Chairman Mao telegraphed Chen Yi and others, "I will first fight a few victorious battles on the inner front and then move to the outer front, so that it will be more politically advantageous." Su Yu followed Chairman Mao's instructions and won seven battles and seven victories in the Soviet Union, and for a time, the morale of the People's Liberation Army reached its peak.
That is to say, at the same time as the seven victories in the seven battles, Chairman Mao once again sent a telegram to Chen Yi and others that "it is still not appropriate for the Shandong Field Army to go south at this time, so as not to fall into a passive position." From Chairman Mao's several telegrams, it can be seen that Chairman Mao has basically accepted Su Yu's proposal.
At the same time that Su Yu won consecutive battles, Chen Yi suffered heavy losses in Si County, and this fact made Chen Yi have to accept that Su Yu's proposal was correct, and finally from the grand strategy, he chose Su Yu's proposal.
Later, Chen Yi specifically criticized the organization in response to this matter, and Chairman Mao finally decided to "make a joint decision on the major policies under the leadership of Commander Chen Yi, and the command of the campaign will be entrusted to Comrade Su Yu." It can be seen from this that Chairman Mao still trusts Chen Yi.
brief summary:
The controversy between Chen Yi and Su Yu was thus resolved by Chairman Mao with facts. In fact, what Chen Yisuyu and Yu were fighting for was a battle plan, for the liberation army to win, not a dispute over each other's wills, and the two did not have a gap because of this matter.
On the contrary, Chen Yi trusted Su Yu more in his combat command ability, and basically handed over the command of front-line operations to Su Yu, and Su Yu also respected Chen Yi from all aspects, without the slightest arrogance. The revolutionaries of the older generation, those heroes, are like this, fighting for the new China!