Complex sentence: The freed Africans founded communities in the forests and mountains, organized guerrilla bands known as Cimarrones, and began a long guerrilla war against the Spanish Conquistadores, sometimes in conjunction with nearby indigenous communities like the Kuna and the Guaymí.
Split into simpler sentences: The freed Africans founded communities in the forests and mountains, organized guerrilla bands known as Cimarrones. They began a long guerrilla war against the Spanish Conquistadores, sometimes in conjunction with nearby indigenous communities like the Kuna and the Guaymí.