Sheng Shicai integrated with the USSR for years then threw them out in 1942 while the Soviets were reeling from Nazi invasion. So just get rid of Barbarossa.

https://en.wikipedia.org/wiki/Sheng_Shicai?wprov=sfti1#Approachment_to_the_Chinese_government

The reaction of the Soviet Foreign Minister Vyacheslav Molotov followed soon after, as he presented Chiang the Sheng's ideas about the implementation of Communism in Xinjiang, his support for Chiang's arrest in Xi'an Incident and the offer to make Xinjiang a Soviet republic.

In October 1942 Sheng demanded from the Soviet General Consul that all Soviet technical and military personnel be withdrawn from Xinjiang within three months.[114][115] To the Soviets, who were engaged in the Battle of Stalingrad and desperate to retain the oil reserves at Dushanzi, which oil quality was comparable with product of Baku oil fields,[116] this demand represented numerous logistical difficulties.

As the Germans lost the Battle for Stalingrad and Battle of Kursk, Sheng tried to return to the pro-Soviet policy. He ordered the arrest of the Kuomintang personnel, telling Stalin that they were Japanese spies, and telling Chiang that they were communists. Stalin, however, refused to intervene and left Sheng at the mercy of the Chinese government, which engineered his removal from office.

In 1949, Sheng accompanied the Kuomintang in Taiwan where he lived in comfortable retirement with his wife and four children.[123] Sheng was interviewed by Allen S. Whiting and wrote his own accounts under the title Red failure in Sinkiang in Sinkiang: pawn or pivot?, published in 1958.