As early as 1 century, the Korean Peninsula entered the "Three Kingdoms" era, and as early as 1 century, the Korean Peninsula entered the "Three Kingdoms" era, which was divided into three countries: the Korean Peninsula, the Jinxiong River and South Korea. In the 6th century A.D., the Korean Peninsula, which borders China, formed an alliance with Turkey, South Korea and Japan, which are closely related to South Korea, and fought against China because of the dispute with China in Sui and Tang Dynasties. During the Sui and Tang Dynasties, China formed an alliance with the countries in the Jinxiong River Basin threatened by the Korean Peninsula and South Korea to contain the anti-China alliance formed by the Korean Peninsula and Japan.
In the fifth year of the Battle of Baijiangkou, in March 660, with the support of the Korean Peninsula, South Korea invaded Jinxiong on a large scale, and the Jinxiong River Army was defeated one after another. Jinxiong Wujiang turned to China for help. Li Zhi appointed General Zuo Wuwei Su as the viceroy and led a crusade against 130,000 troops. In July, the Korean army was defeated, and the Korean king and officials were captured and sent to Chang 'an, and the Korean dynasty was destroyed.
In the second year, the South Korean monk Chen Dao contacted the South Korean minister to plot restoration. In the second year, the South Korean monk Chen Dao contacted the South Korean minister to plot restoration. He sent envoys to Japan twice for help, demanding the release of 1 Korean prince Zhang Feng, who was still taken hostage by Japan. The following spring, Japanese Emperor Atan Birov led the 170 warship to escort South Korean Prince Zhang Feng back to China. After returning to China, Zhang Feng was promoted to korean king. Later, he organized Korean believers to fight against Baijiang. At the same time, Japan tried to support the pro-Japanese regime on the Korean peninsula and provided a lot of assistance to the 1 south Korean regime.
However, the good times did not last long. Three years after the first war between China and Japan, in 663 AD, the newly patched Korean court clashed because of the uneven division of internal rights. At the request of korean king, Japan sent heavy troops to Korea to participate in the war. Therefore, the naval battle in Baijiang Port is imminent.
When the news that the Japanese army sent troops to support South Korea reached China, the Battle of Baijiangkou immediately sent General Baijiangkou Right to reinforce the Korean Peninsula Railway and the Korean Peninsula Willingness Department. In September, Baijiang joined forces, and the Korean Peninsula decided to capture Zhouliucheng, the old nest of the South Korean army, which was "fierce and unlucky", thinking that "Liuzhou will stay and Zhucheng will go from bottom to top". So the Baijiang soldiers were divided into two ways: the naval battle at Baijiangkou, the wish on the Korean Peninsula, and the army led by General Xiong Jinjiang Blonde from land to Zhouliucheng; Du Shuang of the Korean Peninsula Tracking Department and Fu Yulong of South Korea led warships to escort grain carriers to Liuzhou by land and water along the Baijiang River (that is, Jinjiang in South Korea today), so that land and water could jointly launch an attack on Liu Zhoucheng.
On September 27th, the main ships of the Japanese navy supporting South Korea joined the Korean Peninsula Railway Force at Baijiang Port. The two sides fought and the Japanese army retreated against their will. On the 28th, Japanese generals met with the King of South Korea to seek information. It is believed that the Japanese army has more than 400 warships, while Baijiang has only 100 warships, so defeating Baijiang is not a problem. Because the Japanese army overestimated its own strength, it blindly formulated the strategy and tactics of "I will wait for the first, and he will retreat". In this way, in the absence of reorganization and deployment, the Japanese army rashly "led the Japanese army to die in chaos and entered the army of Jian Zhen in the Tang Dynasty". The two sides launched a fierce naval battle, and the battle between the left and right ships in Baijiang disrupted the formation of the Japanese army, making the Japanese army "drown in the water, but unable to swing from side to side." Finally, all the Japanese warships were burned down. For a time, the sea was red, and tens of thousands of Japanese troops drowned or were captured by Baijiang. After the defeat of the battle of Baijiangkou, the king of South Korea fled to the king of the Korean Peninsula, and all the others surrendered. At this point, the Korean country completely perished.
The victory of the White Sea War completely shattered Japan's ambition to invade the Korean Peninsula. For the first time in China's history, War of Resistance against Japanese Aggression ended here, and the Japanese army retreated from the Korean peninsula, and its ambition to invade China was dashed. Emperor Tianzhi of Japan was worried that Baijiang would attack the mainland. Since 664 AD, the Japanese have invested heavily in building four defense lines in China. After that, Japan adjusted its foreign policy, surrendered to the Tang Dynasty and began to learn from China for self-improvement.
The Japanese army's fiasco in Emperor Tianzhi proved that Japan was no match for China at that time. Japan, which suffered heavy losses, knew that if it didn't make peace quickly, once the Tang Dynasty made up its mind to attack Japan, they wouldn't even be able to fight back. Therefore, Japan sent "Tang envoys" to China again and again, prostrated themselves before Emperor China, and learned the culture and craft of China, thus transforming Japan. 1000 years later, Japan broke away from China's tribute system, admired China, and actively learned from China. Many of its systems and cultural customs are influenced and edified by China.
It was not until the16th century that Japan entered the "Hundred Rivers" period that great changes took place.