 Complete the following phrase:  During the Ili Rebellion the Soviet Union backed Uyghur separatists to form the Second East Turkistan Republic 2nd ETR from 1944 to 1949 in what is now Ili Kazakh Autonomous Prefecture Ili, Tarbagatay and Altay Districts in northern Xinjiang while the majority of Xinjiang was under Republic of China Kuomintang control. The Peoples Liberation Army 