 This change in tactic led to protests by Portuguese settlers against the Lisbon government , a <unk> sign of the conflict 's unpopularity . Combined with the news of the Wiriyamu massacre and that of renewed FRELIMO <unk> through 1973 and early 1974 , the worsening situation in Mozambique later contributed to the downfall of the Portuguese government in 1974 . A Portuguese journalist argued : 
