During the 1970s and the early 1980s, Mozambique's foreign policy was inextricably linked to the struggles for majority rule in Rhodesia and South Africa as well as superpower competition and the Cold War. Mozambique's decision to enforce UN sanctions against Rhodesia and deny that country access to the sea led Ian Smith's government to undertake overt and covert actions to oppose the country. Although the change of government in Zimbabwe in 1980 removed this threat, the government of South Africa continued to destabilise Mozambique. Mozambique also belonged to the Front Line States.