A somewhat different kind of political impact began in the late 1960s, when refugees from Katanga in Zaire, speakers of Lunda or a related language, crossed the border into what are now Lunda Sul and northern Moxico provinces. In 1977 and 1978, these refugees and others whom they had recruited formed the National Front for the Liberation of the Congo (Front National pour la Libération du Congo – FNLC) and used the area as a base from which they launched their invasions of Shaba Province. In the 1980s, these rebels and perhaps still other refugees remained in Angola, many in Lunda Sul Province, although the Angolan government as part of its rapprochement with Zaire was encouraging them to return to their traditional homes. The Zairian government offered amnesty to political exiles on several occasions in the late 1980s and conferred with the Angolan government on the issue of refugees. In 1988, however, a significant number of Zairian refugees continued to inhabit LundaChokwe territory. The significance for local Lunda-Chokwe of the presence and activities of these Zairians was not known.