Noun
guerrillero (plural guerrilleros)
A guerrilla fighter.
Synonyms: guerrilla, partisan
Ejército Guerrillero de los Pobres, 1983 By 1981, an estimated 250,000 to 500,000 members of Guatemala's indigenous community actively supported the insurgency. Source: Internet
Police, military forces, and members of the Popular Guerrilla Army (Ejército Guerrillero Popular, or EGP) carried out several massacres throughout the conflict. Source: Internet