The first, Milicias Populares Anti-Somocistas, fought alongside the Sandinista National Liberation Front against the regime of Anastasio Somoza Debayle.
They also played important roles in the liberation of Leon, Chinandega and other cities and towns, and in Managua they fought on the barricades put up in the working class barrios, taking part in the final destruction of the National Guard in its last stronghold.
Among the hundreds of MILPAS fighters killed was Hernaldo Herrera Tellez, “Nano,” the general secretary of FO and a member of the national leadership of MAP-ML.
[4] [5] The earliest contras inside Nicaragua were the MILPAS (Milicias Populares Anti-Sandinistas), peasant militias led by disillusioned Sandinistas.
Founded by Pedro Joaquín González, whose nom de guerre was "Dimas", the Contra Milpistas were also known as chilotes (green corn).