I don't mean to talk about something that has the wrong content to become politicized and invade the territory of any country. Just for historical knowledge. in 1911, when Mongolia gained its independence from the Qing dynasty of Manchu, all these today's Mongolia's bordering Mongol regions outside present-day Mongolia tried to unite. But since 1913, China considered itself the successor of the Qing dynasty. In fact, in 1912, the Chinese proclaimed the Chinese state under the slogan of destroying the foreign Qing Dynasty and expelling the Manchus. At that time, many Manchus were being killed. The reason why this decision was suddenly made in 1913 is because according to the Washington Treaty, Western countries led by the US and the British had considered China to be the Qing dynasty for their economic benefit. It was an irrevocable act that forever left the future of Turkestan, Tibet, Manchuria and Inner Mongolia to China.