 The federation had external ties with the World Federation of Trade Unions (WFTU), the Permanent Congress for Latin American Workers Trade Union Unity (Congreso Permanente de Unidad Sindical de Trabajadores de América Latina—CPUSTAL), and the Central American Committee of Trade Union Unity (Comité de Unidad Sindical de Centroamérica—CUSCA).Its affiliations included water utility, university, electricity company, brewery, and teacher unions, as well as several peasant organizations, including the National Central of Farm Workers (Central Nacional de Trabajadores del Campo—CNTC), formed in 1985 and active in land occupations in the early 1980s.FUTH also became affiliated with a number of leftist popular organizations in a group known as the Coordinating Committee of Popular Organizations (Comité Coordinadora de las Organizaciones Populares—CCOP) that was formed in 1984.