Why did Emperor Kangxi defeat Russia?

1665, Russia invaded jaxa again. 1685- 1686, Kangxi ordered the Qing army to attack jaxa by land and water, and the Russian army suffered heavy losses. But at that time, Emperor Kangxi of the Qing Dynasty did not want to use a large number of troops to fight abroad, nor did he advocate simply using force to solve the problem of tsarist Russia invading Heilongjiang. Even during the jaxa War, Kangxi did not give up the peaceful settlement of disputes caused by the invasion of Russia. He wrote to the czar many times, condemning Russia's aggression against the Qing Dynasty and suggesting that they withdraw their troops and negotiate. The Russian army lost in the battle of jaxa, and the czar demanded a truce. Emperor Kangxi immediately agreed and ordered to stop the attack on jaxa. What is hateful is that Kangxi agreed to the request of the tsar so readily, and did not continue to send troops to annihilate the Russian army, let alone "carry out the revolution to the end", driving all the Russian troops out of Siberia and recovering all the territory, which laid the groundwork for the Russian army to invade again in the future. This is the true embodiment of the Manchu rulers' compromise with the enemy, surrender and betrayal, and preferring to give their friends to slaves. Just think, since I defeated you in Russia, why should I negotiate with you? We should go all out to chase the Russian army back to the west of the Urals, but Kangxi didn't have the courage! So in 1689, the Chinese and Russian delegations held talks in Nebuchadnezzar Chu and signed the so-called Treaty of Equality in Nebuchadnezzar Chu. According to the treaty, grbic River and Waixing 'an Mountains are the borders between China and China, and the south of Waixing 'an Mountains is Russian territory. The land between the outer Xing 'an Mountains and Wudi River has not been divided, and a decision will be made after the two countries find out. The treaty also stipulates that all castles built by Russia in jaxa will be demolished and all Russians will move back. The Treaty of Nebuchadnezzar legally affirmed that the vast territories east of Ergon, outside Xing 'an Mountains, south of the Sea of Okhotsk, Heilongjiang River Basin and Wusuli River Basin (including Sakhalin Island) all belong to the territory of China. The signing of the Treaty of Nebuchadnezzar Chu had a negative and compromising influence on the later Qing emperor's handling of the northern border, which laid a curse for the division of the northern border of China! During the Yongzheng period of the Qing Dynasty, China and Russia signed a number of border agreements to delimit the border between China and Russia in Mongolia. These treaties included the area around Lake Baikal, which originally belonged to China, and the upper reaches of Yenisei River north of Danube into Russian territory. At this point, Russia legally occupied the whole of Siberia. Finally, by the way, in the southeast coast of China at that time, although Kangxi regained Taiwan Province Province, it lacked a strong sense of sea power, and the Ryukyu Islands in the northern part of Taiwan Province Province Island did not send troops to station, which laid the foundation for the Japanese annexation of Ryukyu in the future! The right and wrong of history, the truth of history, and only history can make it clear.