Political map of South & Southwest Asia 16 March 1934 (Soviet invasion of Xinjiang): The 1933 invasion of Xinjiang by the Nationalist Chinese-allied Ma family alarmed the Soviet Union, which responded by mounting its own invasion of the province to support its besieged governor (Soviet invasion of Xinjiang). With the help of their modern army, the Soviets expelled the Ma, effectively turning Xinjiang into a satellite state.