Qin's wars of unification
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Were a series of military campaigns launched in the late 3rd century BC by the Qin state against the other six major Chinese states, leading to the unification of China under the Qin dynasty.
Chronology
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January 220 BC: The conquests of Qin were complete in 221 BC.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Zhao.
January 232 BC: In 233 BC, Huan Yi's army crossed Mount Taihang and conquered the Zhao territories of Chili, both located southeast of present-day Shijiazhuang, Hebei.
January 231 BC: In 232 BC, the Qin forces led by the famous general Wang Jian split into two groups to attack the territories of Fanwu and Langmeng. However, they were ultimately defeated by the local forces, marking a significant setback for the Qin dynasty's expansion efforts.
February 231 BC: In -232 BC, the Qin forces led by General Wang Jian split into two groups to attack the states of Fanwu and Langmeng, which were part of the Zhao territory. However, they were ultimately defeated by the Zhao forces led by Lian Po and Lin Xiangru.
November 228 BC: Zhao Cong was killed in action while Yan Ju escaped after his defeat. Seven months later, Qin forces occupied Handan and captured King Qian, bringing an end to Zhao's existence.
January 235 BC: While Zhao was attacking Yan, Qin used the opportunity to send two separate forces to invade Zhao. The Qin army led by Wang Jian conquered the Zhao territories of Eyu, and Liaoyang, while the other Qin army under the command of Huan Yi and Yang Duanhe captured Ye and Anyang. Zhao lost nine cities and its military prowess was weakened.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Han.
January 229 BC: In 230 BC, the Qin army led by Neishi Teng moved south, crossed the Yellow River, and conquered Zheng, the capital of Han.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Dai.
November 228 BC: Prince Jia, King Qian's elder brother, escaped from Handan and went to Dai (within present-day Yu County in northwestern Hebei), where, with help from some Zhao remnants, he declared himself the King of Dai.
January 221 BC: In 222 BC, Dai was conquered by the Qin army led by Wang Jian's son, Wang Ben.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Yan.
January 225 BC: Using the assassination attempt as an excuse, Ying Zheng ordered Wang Jian to lead an army to attack Yan, with Meng Wu serving as Wang Jian's deputy. The Qin forces defeated the Yan army.
January 221 BC: In 222 BC, the Qin army led by Wang Ben join Li Xin and invaded Liaodong and destroyed Yan's remaining forces.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Wei.
January 224 BC: Wei was conquered by Qin.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Wuyue.
January 222 BC: The following year, Wang Jian and Meng Wu led the Qin army to attack the Wuyue region (covering present-day Zhejiang and Jiangsu), which was inhabited by the Baiyue, and captured the descendants of the royal family of the ancient Yue state. The conquered Wuyue territories became the Qin Empire's Kuaiji Commandery.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Chu.
January 222 BC: In 223 BC, Qin launched another attack on Chu and captured Shouchun, the capital of Chu. Fuchu, the king of Chu, was captured and Chu was annexed by Qin.
Was a military campaign by the Qin Dynasty that led to the conquest of the state of Qi.
January 220 BC: Qi surrendered to Qin.
