Ma Chao and others led Tongguan defenders to attack Weikou (the Weihe River enters the Yellow River estuary) to stop Cao Jun, and Cao Cao sent troops to cover the pontoon bridge, and divided troops to the south of the Weihe River at night, threatening the left wing of Ma Chao and other troops. Ma Chao and others were afraid of being stopped on their way home, so they divided their forces and attacked Cao Ying. Defeated by the ambush, Cao Cao refused to concentrate on the main defense and cede territory for peace. In September, Cao Jun's main force crossed the Weihe River and stuck to it. Ma Chao and others couldn't fight, so they made peace. Cao Cao adopted counselor Jia Xu and made a false promise. When Ma Chao and Han Sui were suspicious and slack, Cao Jun quickly attacked, first with light soldiers, and then with cavalry attacking from both wings, and won a great victory. Ma Chao and Han Sui retreated to the west, and Guanzhong was occupied by Cao Cao.
Date: 2 1 1 March to September (* * * lasts eight months, note: there is a leap in August).
Venue: Tongguan area, Guanzhong.
Results: Cao Cao defeated Ma Chao, Han Sui and other heroes in the western regions and pacified Guanzhong.
Cause: Cao Cao wanted to pacify Hanzhong, but the Kansai governors thought they were going to attack themselves and rebelled.
The change of territory: Cao Cao and the pacification of Guanzhong.
Defender: Cao Jun has at least100,000 troops (including the ace troops, butch cavalry). Xia had generals such as Zhang He, Cao Ren, Cao Hong.
Attacker: Allied forces are divided into 100,000 troops: Ma Chao, Han Sui, Hou Xuan, Yin Cheng, Yang Qiu, Li Kan, Zhang Heng, Liang Xing, Cheng Yi and Ma Wan, and each department is responsible.
The battle of Tongguan was a war between Cao Cao and western heroes such as Ma Chao and Han Sui. At that time, Cao Cao lost in the southern front, so he decided to expand westward. Affected by this news, Ma Chao, Han Sui and others rose up and fought Cao Jun near Tongguan in Guanzhong. Finally, Cao Cao won by playing tricks and suppressed Guanzhong.
In this campaign, Cao Cao defeated several legions in Guanzhong that held the emperor to make the princes, so that they could not jointly resist and their strength was greatly weakened. Later, Cao Cao accepted it further, and sent Xia to guard Chang 'an and pacify Han Sui with Zhang He. Although Ma Chao constantly rallied the masses to arise, they were all suppressed by Xia, and finally only Zhang Lu who fled to Hanzhong made a guest appearance. 2 12 In May, Cao Cao killed Ma Teng, an official in Beijing.