Why did the greatest king of the Qing Dynasty give China's priceless treasure to others?

The battle of jaxa was actually a helpless move during the reign of Kangxi. Russia has been spying on the Far East for a long time. At first, it exiled criminals, local ruffians, hooligans and rogues who committed serious crimes to Siberia, just as the Qing government often exiled criminals to Ningguta. Later, they saw that after these people gained a lot of wealth through looting in Siberia, the government sent troops to gradually expand their territory eastward and occupied nomadic areas in central Siberia and Siberia. Until the Shunzhi and Kangxi periods, they frequently harassed the local people in Heilongjiang area of China, causing panic in northeast China at that time.

Northeast China is the birthplace of Manchu dynasty. Tsarist Russia plundered the people in Heilongjiang for three days, and even invaded the south, which had to make the Qing government and Emperor Kangxi anxious. Kangxi is different from the emperors before China. He is knowledgeable, especially in western countries, and he has knowledge that China literati didn't have at that time. He knew that Russia was stronger than himself, and if he insisted on all-out war, he could not afford to fight in that big environment at that time. So he put up with it for many years, razed it for three transgressions and two times, and recovered Taiwan Province Province, and then assembled his troops to fight to the death with Russia.

The reason why he wants to fight in the northeast, instead of marching into the northwest or Mongolia, is because he knows that there are many small countries in the northwest, which is a labor expedition for himself and an early departure for Russia. The same is true of the attack from Mongolia. Only by playing from your hometown in the northeast can you benefit yourself and occupy the advantage at home. Russia will March for three months to reinforce the Far East, so it is really impossible to fight with many people.

It was this favorable condition that Kangxi narrowly won with half the artillery and nearly 100,000 troops, and signed the Treaty of Nebuchadnezzar with Russia.

Later, when people talked about the Treaty of Nebuchadnezzar, they always thought that the Qing government would lose Siberia if it won the battle. It was too incompetent and ignorant. In fact, on the contrary, the battle of jaxa can only be said to be disastrous. At that time, the Qing Dynasty was at least no match for Russia in military strength. Moreover, although Siberia did not belong to Russia earlier, it has never been our territory, and it can get rich places such as Daxing' anling and Sakhalin Island. In fact, Kangxi has long taken advantage of it, and it has indeed been 150 years of peace.