During the Simba rebellion, Mulele, who had previously undergone training in the Eastern Bloc as well as China, led a Maoist faction in the Kwilu Province. This came to be known as the Kwilu Rebellion. Mulele was an avowed Maoist, and for this reason his insurgency was supported by communist China. By the end of April 1964, Mulele's rebellion had been rendered somewhat less dangerous by the government. The Soviet Union, with an embassy in the national capital of Leopoldville, did not support Mulele's Kwilu revolt and had no part in its preparation: lack of support from the Soviets was in the first place responsible for Mulele turning to China as his patron.