Li Shimin's first eastern expedition to Hebei, the fight was particularly beautiful, captured Dou Jiande and Wang Shichong, it seems that the world has been pacified, but Li Shimin's unconscious father killed Dou Jiande, and finally forced Dou Jiande's old troops, Li Shimin led the second eastern expedition...
<h1>The Eastern Crusade of the King of Qin, the death of Luo Shixin</h1>
Li Shimin led the army on a journey to Hebei to suppress the rebellion, and in his vision, this expedition was another victory journey as before, but he underestimated the complexity of the situation, especially since counterinsurgency was not a simple crusade, which required both force and the people's hearts and minds, and more political wisdom.
Li Shimin's army came to Yujia, Liu Heimin thought that Xiangzhou could not hold on, so he withdrew his army to Huanzhou, Li Shimin pursued to Huanshui, forming a huge pressure on Huanzhou, Li Went to Surrender, Li Shimin sent Wang Junkuo to bring 1500 cavalry into the city, and Li Wentu to defend the city together, at this time, Luo Yi also led his army south to fight with Li Shimin, and achieved certain achievements.
Liu Heimin did not have an advantage in terms of troop strength, he chose to attack Shuishui in a hurry, while Li Shimin planned to rely on Shuishui City to deplete Liu Heimin's troops and morale, and then fight a decisive battle, but he soon found that the situation was very bad, because the terrain of Shuishui was not suitable for defending, the two sides launched a fierce battle in Shuishui, the three attacks of the Tang army were repulsed, Li Shimin had no choice but to hold an emergency military meeting, Luo Shixin stood up and was willing to replace Wang Junkuo to defend Pushui.
Luo Shixin desperately rushed in, Wang Junkuo desperately attacked outward, and the final result, Wang Junkuo lived, Luo Shixin died, it turned out that Liu Heimin attacked Shuishui for eight days, Li Shimin's reinforcements could not be reinforced, and finally the city was destroyed Luo Shixin was captured and killed.
<h1>Water Showdown</h1>
The Tang army once again attacked Shuishui, Li Shimin and Luo Yi also converged, Liu Heimin challenged, Li Shimin could not stand out, and then sent a small force to harass the enemy's grain routes, Liu Heimin transported grain from Ji, Bei, Cang, and other prefectures, tang general Cheng Mingzhen led his troops to intercept the grain road, and the war progressed at this time, returning to Li Shimin's familiar track, after all, he liked to use this annoying way, Ping Xue Rengao was like this, dou Jiande was also like this.
The two armies held each other for more than sixty days, and after Liu Heimin failed to attack the Tang camp at night, the decisive battle came, and Li Shimin went to the upstream of the water to set up a weir in advance, lowering the water level downstream, and at the same time forming a dammed lake, and when the decisive battle reached the halfway point, he immediately dug up the embankment.
The two sides fought, from noon to dusk, Liu Heimin gradually became unable to support, the general suggested that Qingshan stay in the green mountains without fear of no firewood, first withdraw from the battlefield, Liu Heimin quietly fled with his henchmen, but his army did not know, continued to fight, at this time the defenders stationed at the dam received orders, dug open the dam, the water poured down, the river suddenly reached a zhang, cut off the retreat of Liu Heimin's troops, the troops collapsed, Li Shimin beheaded more than 10,000 people in this battle, drowned thousands of enemy troops.
<h1>Qin Wang's class division, Hebei's hostilities rekindled</h1>
Liu Heimin was defeated, there was only one Xu Yuanlang left in Hebei, Li Shimin was preparing to attack, at this time Li Yuan sent a strange order, asking Li Shimin to give the command of the army to Li Yuanji, go to Beijing to report on the work, before entering Beijing, Li Shimin also gave Xu Yuanlang a dismount, recovered a lot of territory, so he handed over the troops to Li Shentong and Xu Maogong, returned to Beijing by himself, and did not come back.
It was also at this time that an unexpected news came - Liu Heimin returned, after Liu Heimin ran to the Turks, the Tang army thought that he would be like Song Jingang and Liu Wuzhou, and even abolished the Shandong Xingtai, this institution was set up to pacify Liu Heimin, but he did not expect that he turned over and came back, this time there were tens of thousands of Turkic troops.
Liu Heimin had just returned, and Hebei, which had just been pacified, rebelled again, and since Li Shimin was in Chang'an at this time, Tang Gaozu asked Li Yuanji to continue to attack, but Li Yuanji would be Liu Heiji's opponent, and his troops would be broken, and even lead to the death of Li Daoxuan, the king of Huaiyang, and Li Yuanjiton's troops did not dare to advance, at this time Li Yuan decided to send his crown prince Li Jiancheng on an eastern expedition, why not Li Shimin? Because he is not suitable for Hebei to suppress rebellion, and this time it is Li Jiancheng who takes the initiative to ask for help, and the purpose is self-evident
<h1>Lee's approach</h1>
The biggest mistake of the Tang Dynasty this time was to equate this war with the previous war, thinking that annihilating the enemy's main force could achieve victory, but this was a counterinsurgency campaign, in addition to force, we must also pay attention to people's hearts, to eliminate the social basis of the enemy's rebellion, and to win the hearts and minds of the people, but Li Shimin did not realize this, so the Hebei region could not be pacified for a long time.
Li Jiancheng's approach was to take a two-pronged approach and adopt a policy of gentleness toward the people of Hebei and liu Heimin's general subordinates, with the focus on building the trust of the people of Hebei in the Tang court, and at the same time resolutely cracking down on Liu Heimin and other diehards, and never being soft-hearted.
The two sides opened a fight next to the Guantao Yongji Canal, Liu Heimin really fought, lost a fight, and fled decisively, Li Jiancheng was not Li Shimin, he was determined to capture Liu Heimin, sent Liu Hongji to lead the cavalry, crossed the river on a large scale, pursued Liu Heimin, ran too hard to stop, did not dare to stop, did not dare to stop, Liu Heimin fled to Raozhou, was captured by his old subordinate Zhuge Dewei, and gave it to Li Jiancheng, Who beheaded him in Huanzhou, at this time it was the spring of the sixth year of Wude (623).