The establishment and demise of a dynasty is not determined by one person, especially when the edifice is about to fall, and the strength of a single person cannot straighten it out. Moreover, Zhang Handan was only a military general, what ability did he have to save the Qin Dynasty? Do you win the battle by fighting? In fact, Zhang Handan's military ability is not strong, even if there is no Xiang Yu, there is still Liu Bang, Zhang Handan encounters ordinary military generals OK, once encountered strong as Xiang Yu, defeating the battle does not seem to be a surprise.
Moreover, even without Xiang Yu and without Liu Bang, zhang Handan led the Qin army to defeat all the rebels, and was he able to save the Qin Dynasty? Obviously not, Zhang Handan himself still has a life or not, it is difficult to say, after all, the internal tilt of the imperial court has always existed, Zhao Gao could not sit back and watch Zhang Handan rise, Zhang Handan himself also understood this truth, so he surrendered to Xiang Yu later. Of course, surrendering to Xiang Yu did not mean that he could survive the chaotic world, after all, the princes at that time were not one heart, attacking each other was the norm, and Zhang Handan eventually committed suicide after being defeated by Liu Bang, neither preserving his reputation nor saving his life.
Zhang Handan's ability to become a military general at the end of Qin shows that there are no good generals available in the Qin state, Wang Qi is dead, and Meng Tian is killed. When Chen Sheng, Wu Guang, and others revolted one after another, Hu Hai and Zhao Gao actually could not find a suitable general to lead the rebellion, and there were not many troops who could go out at the first time, and it was at this time that Zhang Handan, who was then a civilian official in Shaofu (a civilian official in charge of goods), suggested to Hu Hai that the prisoners of Lishan be released to fight against Zhou Wen's army, and Hu Hai asked Zhang Handan to be a military general and command the army of criminals in Lishan. And Zhang Handan also lived up to the expectations of the people, and was able to tame 700,000 Lishan troops for his own use in a very short period of time, becoming the main force in counterinsurgency at that time, and even the border guards led by Wang Qi's grandson Wang Li could not compete with it.
Zhang Handan's army went well in the first battle, first defeating Zhou Wen, Zhou Wen committed suicide, and then the army continued to attack Chen Sheng's troops, causing Chen Sheng to retreat and eventually being killed by his own coachman. Zhang Handan then continued to lead the Qin army to suppress the rebellion, and when he encountered Xiang Liang's Chu army, he ended the record of consecutive battles and was repelled twice by the Chu army. However, the Qin army was strong in the end, coupled with Hu Hai's continuous reinforcements, in the end Zhang Handan defeated the Chu army and Xiang Liang was killed.
After that, Zhang Handan and Wang Li attacked the Zhao state and besieged Zhao Wang Xie at Julu, and Zhao Wang Xie had to turn to various princes for help. It was at this time that Song Yi, Xiang Yu, and Fan Zeng led 60,000 Chu troops to rescue Julu, but at first Song Yi, like other princes, was afraid of the power of the Qin army and refused to take the initiative to send troops. Xiang Yu killed Song Yi in a fit of rage, and he commanded the Chu army to confront the Qin army, and as a result, Zhang Handan retreated, which was only the beginning of the defeat of the Qin army, after which Wang Li's army was besieged and almost completely destroyed, Zhang Handan chose to watch from the sidelines and did not come to the rescue, and it was also in this process that Zhang Handan began to consider the matter of peace with Xiang Yu.
Hu Hai made many accusations about his defeat and retreat, plus the military generals of the previous Qin State, whether they were able to be subjects or not, there were not many good results, and the famous generals Bai Qi and Meng Tian fought many victorious battles for the Qin State, but they still did not get rid of the fate of being eliminated. And he Zhang Handan did not say whether he could win Xiang Yu, even if he won, what awaited him was not necessarily a good result, after all, Zhao Gao did not allow others to take credit for him, even Li Si was defeated at the hands of Zhao Gao, what good results could Zhang Handan have? Moreover, Zhang Handan could not defeat Xiang Yu, and after being defeated by Xiang Yu for the second time, he requested peace, which was considered to be a surrender to Xiang Yu and was crowned the King of Yong by Xiang Yu.
As soon as Zhang Handan surrendered, it meant that no one could stop the princely army anymore, and soon the Prince of Qin surrendered, the Qin Dynasty was destroyed, and Zhang Handan did not live long, becoming the Queen of Yong, he lived in the land west of Xianyang and abandoned Qiu Dingdu, and soon after encountered Liu Bang's army, was besieged for nearly a year, and finally Zhang Handan committed suicide.