<P> These borders had little to do with ethnic make - up, but the Soviets felt it important to divide the region . They saw both Pan-Turkism and Pan-Islamism as threats, which dividing Turkestan would limit . Under the Soviets, the local languages and cultures were systematised and codified, and their differences clearly demarcated and encouraged . New Cyrillic writing systems were introduced, to break links with Turkey and Iran . Under the Soviets the southern border was almost completely closed and all travel and trade was directed north through Russia . </P> <P> During the period of forced collectivisation under Joseph Stalin at least a million persons died, mostly in the Kazakh SSR . Islam, as well as other religions, were also attacked . In the Second World War several million refugees and hundreds of factories were moved to the relative security of Central Asia; and the region permanently became an important part of the Soviet industrial complex . Several important military facilities were also located in the region, including nuclear testing facilities and the Baikonur Cosmodrome . The Virgin Lands Campaign, starting in 1954, was a massive Soviet agricultural resettlement program that brought more than 300,000 individuals, mostly from the Ukraine, to the northern Kazakh SSR and the Altai region of the Russian SFSR . This was a major change in the ethnicity of the region . </P> <P> Similar processes occurred in Xinjiang and the rest of Western China where the PRC quickly established control from the Second East Turkestan Republic that controlled northern Xinjiang and the Republic of China forces that controlled southern Xinjiang after the Qing Dynasty . The area was subject to a number of development schemes and, like Soviet Central Asia, one focus was on the growing of the cotton cash crop . These efforts were overseen by the Xinjiang Production and Construction Corps . The XPCC also encouraged Han Chinese to return to Xinjiang after many had migrated out during the Muslim revolts against the Qing Dynasty . </P> <P> Political turmoil has led to major demographic shifts in the region: During the Qing Dynasty there were 60% Turkic and 30% Han Chinese in the region, after the Muslim revolts the percentage of Han Chinese dropped to as low as 7%, and by the year 2000 some 40% of the population of Xinjiang were Han . As with the Soviet Union local languages and cultures were mostly encouraged and Xinjiang was granted autonomous status . However, Islam was much persecuted, especially during the Cultural Revolution . Many people from other parts of China fled to Xinjiang due to the failed agricultural policies of the Great Leap Forward in other provinces . However, the Great Leap Forward did not affect much of Xinjiang due to its geographical isolation from other parts of China . </P>

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