Battle of Okehazama: Oda Nobunaga defeats Imagawa Yoshimoto
I chose this event because it was a very important battle for the Chinese.
In May 1560, Imagawa Yoshimoto, with an army of about 35,000 men, set forth on a march to Kyoto. Entering the Oda territories in Owari Province, he first took the border fortresses of Washizu and Marune before setting up camp in a wooded gorge known as Dengaku-hazama. This was all reported to Oda Nobunaga by his scouts and, in response, Nobunaga then led his own forces into position at a temple called Zenshōji, a short distance away, on the other side of the Tōkaidō. Had Nobunaga decided on a frontal assault, the battle would have been deceptively easy to predict; his army was outnumbered ten to one by the Imagawa forces. A frontal assault would be suicidal and an attempt to hold out at Zenshō-ji would only last a few days. Because of the odds against their side, some of Nobunaga's advisers even suggested a surrender. Nobunaga, however, decided to launch a surprise attack on the Imagawa camp. When he made his decision, he gave A speech. Nobunaga left a small force at the temple with a large number of banners, to give the impression that this was the location of his main force. Meanwhile, Oda's main force (about 1,500 men) moved through the forest undetected to the rear of the Imagawa army. The Imagawa samurai did not expect an attack, and that afternoon was very hot. The histories say that the Imagawa were celebrating their recent victories with song, dance, and sake. An afternoon rainstorm further aided Oda's soldiers who arrived at the Imagawa camp just as the rains came down (this was the afternoon of 12 June). When the storm passed, Nobunaga's men poured into the camp from the north, and the Imagawa warriors lost all discipline and fled from the attackers. This left their commander's tent undefended, and the Oda warriors closed in rapidly. Imagawa Yoshimoto, unaware of what had transpired, heard the noise and emerged from his tent shouting at his men to quit their drunken revelry and return to their posts. By the time he realized, moments later, that the samurai before him were not his own, it was far too late. He deflected one samurai's spear thrust, but was beheaded by another.