Moxico Province
Following a number of failed attempts to take the settlements in 1986, eight FAPLA brigades mustered for a final offensive—"Operação Saludando Octubre"—in August 1987 with extensive auxiliary support from one of Angola's closest military allies, the Soviet Union. The FAPLA offensive took the form of a two-pronged, multi-divisional movement southwards towards Mavinga, a major UNITA stronghold and logistics centre. Once Mavinga was in its hands, FAPLA intended to expel the remaining insurgents from Moxico Province and pave the way for a final assault on the UNITA headquarters at Jamba. The Soviet Union supplied FAPLA with over a billion dollars' worth of new military hardware for the purpose of this offensive, and between 4 and 9 Soviet advisers were attached to each FAPLA unit on the brigade level.