Thái Nguyên Province
Additional chien khu developed in Yên Bái Province, Thái Nguyên Province (the "traditional" stronghold of the PCI), Quảng Ngãi Province (Ho's birthplace), Pac Bo in Cao Bằng Province, Ninh Bình Province and Dong Trieu in Quảng Ninh Province. As with many other revolutionary movements, part of building their base was providing "shadow government" services. They attacked landlords and moneylenders, as well as providing various useful services. They offered education, which contained substantial amounts of political indoctrination.