Uyghurs
Contemporary scholars consider modern Uyghurs to be the descendants of a number of people, including the ancient Uyghurs of Mongolia who arrived at the Tarim Basin after the fall of the Uyghur Khaganate, Iranic Saka tribes, and other Indo-European peoples who inhabited the Tarim Basin before the arrival of the Turkic Uyghurs. DNA analyses indicate that the peoples of central Asia such as the Uyghurs are all mixed Caucasian and East Asian. Uyghur activists identify with the Tarim mummies, remains of an ancient people who inhabited the region, but research into the genetics of ancient Tarim mummies and their links with modern Uyghurs remains problematic, both to Chinese government officials concerned with ethnic separatism, and to Uyghur activists concerned that the research could affect their people's claim of being indigenous to the region.
World Uyghur Congress
The World Uyghur Congress is an umbrella term for an organisation of once small, weak and fractious Uyghur nationalist groups, including the World Uyghur Youth Congress, formed in November 1996 and the East Turkestan National Congress. On 18 April 2004, these groups united, with Erkin Alptekin serving as the first president and Dolkun Isa is General Secretary since 2004 of the unified group; he served until 2006, when Rebiya Kadeer was elected as at the second General Assembly meeting held on 24–27 November 2006. The Congress has convened six assemblies since its inception—in 2004, 2006, 2009, 2012, 2016 and 2017. As part of the East Turkestan independence movement, it is a member of the Unrepresented Nations and Peoples Organization. The organisation itself is based primarily in Munich, where a large Uyghur diaspora lives. There are known links between the WUC and the East Turkestan Islamic Movement.