The Uyghur (alternatively spelled Uighur) are the largest and titular ethnic group living in the Xinjiang Uyghur Autonomous Region, a vast area in northwestern China of over 1.6 million sq. km. According to the 2010 census Uyghurs make up 45.21 percent of the population of Xinjiang, numbering 8,345,622 people. The Han, the largest ethnic group in China, make up 40.58 percent in the region with 7,489,919. A Turkic-speaking largely Muslim ethnic group, the Uyghurs traditionally inhabited a series of oases around the Taklamakan desert. Their complex origin is evidenced by a rich cultural history that can be traced back to various groups that emerged across the steppes of Mongolia and Central Asia. Uyghur communities are also found in Uzbekistan, Kyrgyzstan, and Kazakhstan, with significant diaspora groups in Australia, the United States, Germany, and Turkey. In the first half of the 20th century, Uyghurs briefly declared two short-lived East Turkestan Republics in 1933 and again in 1944, but the region was brought under the complete control of the Chinese state after the Communist Party (CCP) came to power in 1949. Within China they are considered one of the fifty-five officially recognized ethnic minority groups, who, along with the Han who constitute 92 percent of the population, make up the Chinese nation or Zhonghua Minzu中华民族. However, for many Uyghurs the name “Xinjiang,” which literally translates as “New Territory,” indicates that their homeland is a colony of China, and they prefer the term “East Turkestan.” Nevertheless, many scholars use Xinjiang as a natural term even when they are critical of the position of the Communist Party. In this article both terms are used. In the early years of the People’s Republic of China (PRC) Uyghurs numbered about 80 percent of the population of Xinjiang, but large-scale government-sponsored migration has seen the number of Han in the region rise to almost the same as that of the Uyghur. This has led to an increase in ethnic tensions often caused by competition for scarce resources and a perception that the ruling Communist Party favors the Han. In 2009, a major outbreak of violence in the capital Ürümchi saw hundreds die and many more imprisoned. The years 2013 and 2014 were also crucial turning points with deadly attacks on passengers in train stations in Kunming and Yunnan, bombings in Ürümchi, and a suicide attack in Tiananmen Square in Beijing, all blamed on Uyghur terrorists. Since then the Chinese government has introduced a harsh regime of security clampdowns and mass surveillance, which has significantly increased from 2017 and which, by some accounts, has seen over one million Uyghurs and other Muslim ethnic minorities imprisoned without trial in “reeducation” camps. The Chinese government insist these camps form part of an education and vocational training program designed to improve the lives of Uyghurs and root out “wrong thinking.” Many Uyghurs believe it is part of a long-term project of assimilation of Uyghur identity and culture.