In 1941, Sheng Shicai tried to correct his mistake by writing a letter of repentance to Stalin in which he proposed to adopt Xinjiang, as the 18th republic of the USSR, but was refused.

In 1943, with the assistance of the Soviet intelligence organization was established freedom of East Turkestan "Azat Tashkilati"

Order Beria in December 1944 was established the department of special assignments NKVD. The main tasks set before him guidance and assistance to the national liberation movement of Muslims in Xinjiang.

Although the proclamation of the republic gained a number of serious military victories, and was ready to release the remaining districts Uighuria, its fate was sealed. The matter is that paragraph 3 of the Annex to the Agreement on Friendship and Cooperation, signed between China and the Soviet Union in August 1945 (signed by Molotov and Minister of Foreign Affairs of the Republic of China Wang Shijie) been on the Uighurs. It argued that "regarding the development of Xinjiang, the Soviet Government declares that, according to Article V of the treaty on friendship and cooperation, it will not interfere in the internal affairs of China"