 Samora Machel became Mozambique 's first president . The Reverend <unk> Simango , his wife , and other FRELIMO dissidents were arrested in 1975 and detained without trial . Within about two years , fighting resumed with the Mozambican Civil War against <unk> insurgents plied with Rhodesian and South African military support . Industrial and social recession , Marxist @-@ style <unk> , corruption , poverty , inequality and failed central planning eroded the initial revolutionary fervour . Peace returned only in 1992 , when the nation achieved relative stability for the first time in several decades . 
