When was Lake Balkhash signed and what treaty was lost?

The Sino-Russian Beijing Treaty began, and the two treaties demarcated the eastern border of modern China and Russia. In addition, the treaty also stipulated the direction of the western section of the Sino-Russian border in principle, which became the boundary basis for the demarcation of the northwest border between China and Russia in later 1864. China ceded to Russia more than 440,000 square kilometers of Russian territory to the east and south of Balkhash Lake and to the north and south of Zhaishan Dele.

The Sino-Russian Northwest Border Demarcation Treaty, also known as the Tacheng Protocol, was an unequal treaty signed by Russia on 1864+054381October 7 (September 7, the third year of Tongzhi), which forced the Qing government to occupy the territory of northwest China (now called outer northwest).

Article *** 10 of the northwest border reconnaissance between China and Russia, with the main contents as follows: 1. Redefine the western boundary between China and Russia, from Sabindabaha to Hao Han, and the land originally belonging to China in the west of the New Territories will be handed over to Russia. 2. After demarcation, the residents near the new boundary line will be under the jurisdiction of any country that divides the land. 3. At the end of 240 days after the exchange of contracts, the ministers of the two countries will jointly "establish jiepai Aobao according to the agreed border address" and draft the border record, on the basis of which the exchange will be conducted. 4. After the border is determined, Karen people in China on the Russian side should move to China side within one month. There are five villages belonging to Talbahatai outside Baktuka, and they moved in 10.

As a result, Russia occupied 440,000 square kilometers of territory east and south of Balkhash Lake in northwest China and north and south of Jessanur (now Jessanpo). This area is now owned by Kazakhstan and Kyrgyzstan, as well as Altai, Tuva and Russia.