The second point is that Dai Shan participated in several major wars with the Ming Dynasty and played a key role.

Dai Shan participated in the Battle of Fushun and made great achievements.

In 1618 (the forty-sixth year of Wanli, the third year of the Later Jin Heavenly Mandate) on the 13th day of the fourth lunar month, Houjin Nurhachi swore an oath against the Ming Dynasty with the "Seven Great Hatreds", and led 20,000 cavalry to attack Fushun in the Ming Dynasty. The army had been marching for two days and suddenly it rained heavily, and Nurhachi wanted to return.

Dai Shanli marched into the army and advised: "Since our army has entered the border of the Ming Dynasty, if we return to the army due to the rain, can we still make peace with the Ming Dynasty?" The leakage of the military plane will cause endless troubles. Although it rained, the roads were muddy, and it was difficult to walk, the soldiers could still continue to advance if they had rain equipment, and because of this, the enemy army might be lax, and how could they brave the rain and travel long distances to attack the castle? Therefore, taking advantage of the rain to make a sudden sneak attack, it is like falling from the sky, and the enemy will inevitably be caught off guard. ”

Nurhachi listened to Dai Shan's advice, revoked the decision to retreat, ordered to advance, took Fushun lightly, the Ming Dynasty guerrilla Li Yongfang surrendered, conquered more than 500 castles such as Mahadan and Dongzhou, and won 300,000 people and animals.

Zhang Chengyin, the chief soldier of the Ming Dynasty, led 10,000 people to chase, and Dai Shan fought with Sibeile, and Nurhachi sent him to stop, and Dai Shan said: "If he treats me, I will fight." If you don't stay, you will go. When taking advantage of the situation to pursue, there is no reason for my soldiers to return silently, which is called my cowardice. Nurhachi agreed with Dai Shan's opinion, moved to the border, broke his third battalion, and beheaded Zhang Chengyin, deputy general Po Tingxiang, general Pu Shifang, guerrilla Liang Rugui, etc.

Salhu won a big victory, and Dai Shan, as a striker, took the first credit.

On the second day of the first month of the first month of 1619 (the fourth year of the Mandate of Heaven), Nurha's red army attacked Yehe, and Daishan was ordered by Khan's father to lead 16 generals and 5,000 soldiers to garrison in Jiahaguan to defend against Ming soldiers.

At the end of the second lunar month in 1619 (the fourth year of the Mandate of Heaven), Yang Hao, the Liaodong Jinglu of the Ming Dynasty, led an army of about 100,000 troops, and ordered the soldiers to encircle and suppress Houjin in four ways.

When Nurhachi received the news that the Ming army was coming by different routes, he ordered the kings and ministers to lead their troops to the west to meet the enemy. While the army was marching, the sentry came and reported: "The Ming army has 60,000 men from Qinghe City. Dai Shan said: "The road to Qinghe is narrow and rugged, which is not conducive to rapid marches, and we should first resist the enemy army coming from Fushun." ”

The Ming Dynasty's chief soldier Du Song divided his troops into two, stationed the main force in Salhu Mountain, and led 10,000 people to cross the river to attack Jilin Cliff. At that time, although Jilin Cliff was only defended by hundreds of Jurchen soldiers, because of the steep terrain and solid facilities, Juniper could not lead the team to attack.

On the first day of the third lunar month in 1619 (the fourth year of the Mandate of Heaven), Dai Shan, Sibeile Huang Taiji and others were ordered by Nurhachi to lead the two banners to reinforce Jilin Ya; Nurhachi himself personally led the Six Banners to attack the main force of the Juniper Army in the Salhu area. The main force of the Du army was routed, and there were many casualties. The defenders of Houjin stationed in Jilin Cliff also defeated the attacking enemy with the cooperation of Daishan reinforcements, and the general soldiers of the Ming army, such as Du Song, Wang Xuan, and Zhao Menglin, were all killed in the battle.

On the night of the first day of the first month of March, the Ming Dynasty's Northern Route Army, led by Ma Lin, advanced to Shangjian Cliff (northeast of Salhu), learned that Juniper's army was defeated, did not dare to advance, and stationed the army in three places for local defense.

Dai Shan was ordered to be the vanguard of the front line, and led the army to the Shangjian Cliff, and the two sides fought on the morning of the second day of the first month of March. Nurhachi led the pro-guard army and the soldiers of the Second Banner to leave the camp and climb a hillside to lookout. Seeing that the soldiers in the Ming camp and the soldiers outside the camp converged, Nurhachi ordered to start fighting the Ming army. So Dai Shan descended from the left side of the mountain, that is, the southern slope, to the foot of the mountain, and ordered his soldiers of the Second Banner to dismount and prepare for foot battle. There were forty or fifty people who dismounted, and the Ming army came to attack from the west. Daishan said to Nurhachi, "I should lead the army forward." Then he rode his horse to meet the enemy and fought straight into the ranks of the Ming army. Zhu Beile and Taiji, who led the troops, also followed Dai Shan to kill the Ming army, the two armies fought, the Ming army was defeated and retreated, most of the attacking Ming army was killed, and the deputy general Ma Yan was beheaded, and Ma Lin was only spared. Immediately, Dai Shan moved to Feifen Mountain and defeated the Ming Dynasty Pan Zongyan Division. On the fifth day of the first month of March, Dai Shan and the other three major Baylors joined forces to annihilate the army of Liu Ling, the general soldier of the Ming Dynasty, at Abu Daligang, and the Later Jin State won the victory in the Battle of Sarhu.

After the defeat of the Ming army, many Baylors advocated killing the Korean marshal Jiang Hongli and others who came to help the Ming. But Dai Shan disagreed, believing that "a war with the Ming Dynasty in the south must not be combined with Korea in the north." When the marshal of the Korean army, Jiang Hongli, led the remaining 5,000 soldiers down the mountain to surrender, because he did not meet Nurhachi at the Golden Ceremony, Nurhachi was angry and wanted to kill all the Korean generals, but Dai Shan came forward to stop him, Dai Shan said, "The peace treaty on the battlefield has been sworn by heaven, and if they are killed, heaven will not tolerate it", and suggested that all the Korean troops be released back to Korea. In the end, according to Daishan's words, Taejo temporarily reached a reconciliation agreement with North Korea.

After the battle of Sarhu, the Houjin army took advantage of the situation to capture Kaiyuan, and on the 25th day of the seventh lunar month in 1619 (the fourth year of the Mandate of Heaven), Daishan followed Nurhachi to attack Tieling. After capturing Tieling City, Dai Shan led his troops to attack more than 10,000 Mongolian soldiers led by Qi Saibeile who were lurking in the Gaoliang Territory, and the Mongolian soldiers were defeated to the Liao River, and Dai Shan killed his troops in the Liao River.

Dai Shansheng captured the Mongol Bel Qisai and his sons Setekir, Keshiktu, Zaluttubak, the Seben brothers, and Sangar Zhai, the son of Korqin Ming'an Bel, etc., a total of six Beylers, and the close minister of Qisaibele, Daigar Tabuxiang, and more than ten ministers, a total of 150 people.

On the 19th day of the eighth lunar month in 1619 (the fourth year of the Mandate of Heaven), Daishan followed Nurha's red troops to attack Yeh. On the morning of the 22nd, the troops arrived in Yehe, Daishan and Amin and Mang Gurtai, led the army to capture the city of Yehesi, and Nurhachi captured the eastern city. Daishan agreed, and swore an oath with Buyangu and his mother (Daishan's mother-in-law), and Buyangu surrendered (and was later hanged), and Burhangu Beyl was taken back to his home by Daishan.

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This third point is that because of the abuse of his son, Daishan was disqualified from the throne.

In March and April of 1620 (the fifth year of the Mandate of Heaven), when the Later Jin Kingdom was preparing to move from the Boundary Domain City to Salhu City, Nurhachi inspected and designated the residences of each Belle to build mansions. Dai Shan saw that his eldest son Yue Tuo's well-repaired homestead was better than his own, so he successively asked Mang Gurtai and Amin to ask for his life, saying that the place where he lived was small and that he intended to occupy Yue Tuo's homestead.

On the third day of the ninth month of 1620 (the fifth year of the Mandate of Heaven), Daishan's second son, Aixin Jueluo Shuotuo (Yue Tuo's half-brother), suddenly disappeared because he could not bear Daishan's abuse, and some people said that he "defected" to the Ming Dynasty. Before it was determined whether Shuotuo had defected, Dai Shan insisted that Shuotuo had the intention of defecting; After finding Shuto and making it clear that he had not defected, Daishan knelt down five or six times to ask Nurhachi to kill him. Daishan's request was denied, and Nurhachi released Shuto.

Nurhachi thus began to investigate the treatment of Daishan's two ex-wife's sons, and found that the assets of Daishan's sons, Yueto and Shuoto, were worse than those of his other half-brothers. Therefore, Nurhachi angrily rebuked Dai Shan and said, You are also the son of your ex-wife, why don't you want to think that I am not closer to you? Why have you been deceived by your stepwife and abused your grown son? What's more, I have always treated you with a special selection of good subordinates for you to manage, why can't you give good subordinates to Yue Tuo and Shuotuo like I did?

Nurhachi separated Yuetuo, Shuotuo and Daishan, and publicly announced the abolition of Daishan's crown prince.

After Dai Shan was deposed as the heir, on the 28th day of the ninth lunar month in 1620 (the fifth year of the Mandate of Heaven), he killed his stepwife with his own hands to apologize to his father. Nurhachi tolerated Daishan. Although Dai Shan was abolished as the crown prince, he still had to be the head of the four Baylors and participate in the governance of the country.

Dai Shan is the first of the four Baylors.

In 1621 (the sixth year of the Mandate of Heaven) in the second lunar month, the four major Baylors, Dai Shan, Amin, Mang Gurtai, and Huang Taiji, were on duty to manage government affairs on a monthly basis.

In 1621 (the sixth year of the Mandate of Heaven) in the third lunar month, Dai Shan led the Red Banner and the Red Flag Two Banner Soldiers, followed Nurhachi, conquered Shenyang and Liaoyang, and defeated Li Bingcheng, the chief soldier of the Ming Dynasty. In the seventh lunar month of the same year, Chen Liangce, the Chinese army in Zhenjiang City (now Jiuliancheng, Liaoning), sneaked through Mao Wenlong, so that the people of Bebao falsely claimed to be soldiers, and the city was disturbed. Daishan was ordered by Nurhachi, and Mang Gurtai and Dutang Adun, led 2,000 troops, and relocated the coastal residents of Jinzhou to Fuzhou. In the eleventh lunar month of the same year, Dai Shan took 66,000 taels of silver from the silver treasury and distributed them to the officers and soldiers of the Eight Banners.

In the second lunar month of 1622 (the seventh year of the Mandate of Heaven), Dai Shan and Huang Taiji led the three flags of the red flag, the red flag, and the white flag to garrison Yizhou, and killed 3,000 Han soldiers who refused to surrender to Yizhou, and drove 4,557 Ding, 8,864 people, and more than 3,000 horses, cattle, and donkeys to Jinzhou. In the fourth lunar month of the same year, in order to show friendship and intimacy, Jin Khan, Beile and the returning Mongolian Zhubeile "formed a family", and Daishan's in-laws were Mangguoer Eju father and son, Qiuerji, Misai, Yilin Qin, Ebugen, Isiabu and Daiqing's son Baiyindai, and the number of Mongolian in-laws exceeded Amin and other Beile. He also led Dudu Belle, Zilharangbel and Yanguli to lead more than 10,000 troops to Quang Ninh to change the defense.

In the second lunar month of 1623 (the eighth year of the Mandate of Heaven), Dai Shan and Erbel Amin led the troops to Jinzhou and Yizhou to capture the Mongolian soldiers who came here to transport grain. In the sixth lunar month of the same year, Dai Shan was ordered by Khan, and four Baylors, including Jaisangu, led 20,000 troops to Fuzhou to suppress the Han uprising, and returned after victory. In the same month, Wang Bing, the reincarnation of Fuzhou, and Li Diankui, the superintendent of Yongning, respectively reported to Daishan that Wuergudai had accepted bribes, and Daishan told Nurhachi, the father of the Khan. After the trial, Zhubeile planned to put Urgudai to death, and accused Huang Taiji, Dege, Zilharang, and Yuetuo Sibeile of being guilty, and asked Nurhachi to punish him. Nurhachi denounced Huang Taiji's pride and ignorance, and ordered the punishment of the four Beyler Niulu. On the twentieth day of the eighth month of the lunar calendar, Nurhachi issued an edict, pointing out that all of them were at fault, and the next day, Zhubel wrote to blame himself. Dai Shan said: "When my father Khan pointed out my mistakes, I did not listen to them and committed a crime, but my father Khan and his brothers still raised me with courtesy. If I do not deeply care for my transgressions, such as merely lying and repenting of them, and still think that I am right in my heart, how can the Emperor forgive me? Don't forget my faults. I always think of my mistakes and regret them. In the future, I must abandon evil deeds and encourage myself to do good. If I make any more mistakes, I will be in trouble. ”

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This fourth point is to support the establishment of Huang Taiji, but it is suspicious