The Nicaraguan Revolution encompassed the rising opposition to the Somoza dictatorship in the 1960s and 1970s, the campaign led by the Sandinista National Liberation Front to oust the dictatorship in 1978–79, the subsequent efforts of the FSLN to govern Nicaragua from 1979 to 1990, and the Contra War, which was waged between the FSLN-led government of Nicaragua and the United States–backed Contras from 1981 to 1990. Wikipedia