Complex sentence: The various military, financial and propaganda tasks were allocated, and the group dispersed and some members went back to Vietnam while others lurked in the border provinces of Yunnan and Guangxi along the Chinese border with Vietnam.
Split into simpler sentences: The various military, financial and propaganda tasks were allocated, and the group dispersed. Some members went back to Vietnam while others stayed in the border provinces of Yunnan and Guangxi along the Chinese border with Vietnam.