The Nukak and Guayabero are people who live between the Guaviare and Inírida rivers, in the tropical humid forest, on the fringe of the Amazon basin, in Guaviare Department, Republic of Colombia. 

Both groups have already suffered the devastation of their population by malaria, measles and pulmonary diseases since their contact with the New Tribes Mission and other outsiders beginning in 1981; now, coca growers, left-wing FARC guerillas, right-wing AUC paramilitaries and the Colombian army have occupied their lands. These Indians have therefore become embroiled in Colombia’s armed conflict.