
1) Nicaraguan fighters 2) Nicaraguan group 3) Nicaraguan rebels
Found on
https://www.crosswordclues.com/clue/contras

The contras (some references use the capitalized form, `Contras`) is a label given to the various rebel groups that were active from 1979 through to the early 1990s in opposition to the Sandinista Junta of National Reconstruction government in Nicaragua. Among the separate contra groups, the Nicaraguan Democratic Force (FDN) emerged as the large.....
Found on
http://en.wikipedia.org/wiki/Contras

The contras are a right wing Nicaraguan guerrilla force.
Found on
http://www.probertencyclopaedia.com/browse/CXCA.HTM
No exact match found.