The Turks have a strong tie with the Uighurs in Western China. They share common language roots and the Turks tie their ethnic history with the ethnic minority in Xin Jiang.
While in Turkey this week, you can read in the local papers about Chinese trade missions here in Turkey to establish new cooperation.
The issue on both sides - who has the major “rights” to the land and resources. The Uighurs say they do - they are native to that land (by maybe 500 years?). The Chinese say they have political and national ownership over that land - and they have been incentivizing Han Chinese to move there and tip the population balance from Uighur to Han Chinese for the last 30 years.
Here is an excerpt about the spread of ethnic Chinese in the region overall: “The Chinese presence in Central Asia has grown in recent years, especially in neighboring Kyrgyzstan and Kazakhstan. Trade between China and Kyrgyzstan — much of it exports of cheap Chinese manufactured goods — tripled between 2004 and 2006 (the last year for which data were available). What’s more, between 10,000 and 100,000 Chinese merchants and workers now live in Kyrgyzstan.
But the Chinese influx has become increasingly unwelcome, and resentment is growing among many Kyrgyz. “The migrant flow from China should be reduced,” one parliamentarian said recently. “There is a threat that in 15 years, the country will overflow with Chinese.”
this is from www.worldpoliticsreview.com