It is a war for land and natural resources that goes on deep in the Amazonian jungle.
Local communities are fighting the Peruvian government's plans to open up the area for oil exploration and logging. Now, their plight has been taken up by the country's most famous economist.
Hernando de Soto champions a free market, pro-business approach to bring development to the urban poor. Can his ideas work in the Amazon ?
Linda Pressly reports from Santa Ursula in Peru.