It is late autumn in southern Chile, and in the region of Araucanía, the leaves have turned copper and gold. But on the road to the mist-shrouded town of Lumaco, the hills are covered with rows of charred pines.

“We burned these forests as an act of legitimate resistance against the extractive industries that have oppressed the Mapuche people,” says Hector Llaitul. “If we make their business unprofitable they move on, allowing us to recover our devastated lands and rebuild our world.”

This year has already turned out to have been a particularly combustible one in a decade of rising attacks by indigenous Mapuche activists against the Chilean state and big business. Over several few days in April, crops were burned, roads were blocked and 16 forestry vehicles were set ablaze outside of the regional capital, Temuco.

Such actions have become more and more common. According to statistics published by a local business association, there were 43 attacks in the region in 2017, mainly arson attacks against logging firms.

“Anyone who hasn’t been in the Chilean forest doesn’t know this planet,” wrote Pablo Neruda, who grew up in the region – and whose verse was inspired by its wild landscapes, and the indomitable spirit of its native people who were only conquered after Chilean military campaigns in the late 19th century.

Today, however, much of the west of the region would be unrecognizable to Chile’s finest poet. In the last 50 years, monoculture pine and eucalyptus plantations have replaced the biodiversity of the original forests.

Meanwhile, Mapuche groups have become increasingly aggressive in their efforts to reclaim ancestral lands and gain political autonomy. Llaitul is a spokesman for the Coordinadora Arauco-Malleco (CAM), an anti-capitalist organization that uses direct action and sabotage tactics.

The group has also demanded the release of the shaman Celestino Cordova, who was convicted in February 2014 for an arson attack on a farmhouse north of Temuco that resulted in the deaths of an elderly couple, Werner Luchsinger and Vivianne Mackay.

Facebook Twitter Pinterest Hector Llaitul, an indigenous activist. Photograph: Mat Youkee/The Guardian

Cordova began a hunger strike in January after officials denied his request to complete a religious ceremony outside of the prison. He temporarily suspended the strike in April to negotiate.

“The government practices and respects Catholicism but it discriminates against Mapuche spiritual beliefs,” he said from a hospital bed, guarded by police officers. “The Mapuche have been impoverished spiritually, culturally and economically by Chile. I’m willing to sacrifice my life for my people.”

Today, however, much of the west of the region would be unrecognizable to Chile’s finest poet

But Cordova’s conviction in the high-profile Luchsinger-Mackay case has made it tougher to win public sympathy for his cause, said Nicolas Rojas Pedemonte, a professor at Alberto Hurtado University in Santiago and author of a new book on the Mapuche conflict.

“That case was an inflection point for the conflict,” he said. “It was the first fatal attack, it turned Chilean media against the Mapuche and was used by the state as a Trojan horse for a repressive response.”

Police presence has since been heavily increased in Araucanía leading to the militarization of the region and increasingly indiscriminate targeting of indigenous people, according to Rojas.

In January 2017, charges against several Mapuche – including Llaitul – were dropped after it was revealed that police had used manipulated WhatsApp messages as evidence in arson cases. “I don’t even use WhatsApp,” says Llaitul, brandishing a tiny Nokia.

The Luchsinger-Mackay case was also the first sign of a split in Mapuche activist ranks. A new more radical group – know as the Weichan Auka Mapu (the Struggle of the Rebel Territory, WAM) – emerged, adopting an explicitly anti-Chilean stance and the tactic of burning churches – most recently during the Pope’s January visit to the region.

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Llaitul says the CAM rejects the targeting of individuals and that direct action against forestry projects is the first stage towards reclaiming the land for Mapuche settlements.

On a former timber reserve overlooking Lumaco, his vision is being put into action. The logging firm, Arauco, abandoned the project following repeated arson attacks and today, in a small clearing, a dozen young men and women are hammering timbers together on the construction of a house in the woods.

A Mapuche red, blue and green flag flaps from the apex.

Facebook Twitter Pinterest The destructive results of a forest fire started by Mapuche radical groups. Photograph: Rodrigo Abd/AP

“When we recover lands we plant crops, breed animals and reconstruct our cultural world,” says Llaitul. “We will build houses but our first priority is a spiritual centre, the rewe.”

The rightwing government of the current president, Sebastián Piñera, has a different vistion for the future of Araucanía, the region with the worst poverty and unemployment rates in the country.

Ministers visited Temuco in April to finalize plans for a major growth plan for the region, focusing on tourism, agriculture and energy investments and training programs to allow the 150,000 hectares of land turned over to Mapuche groups in recent years to return to production.

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The plan, to be launched in August, is also expected to increase the purchase of private lands by the national indigenous development agency.

“People in Araucanía are calling out for peace and development. Over the years so much investment has been turned away due to security fears,” says Luis Mayol, the Santiago-appointed administrator of Araucanía. “Piñera won 63% of the vote in this region – the Mapuche people want growth like everyone else. However, there is a small number of terrorists with radical ideologies and the resources to generate fear.”

While the development plan aims to win the support of Araucanías indigenous groups, accompanying amendments to the anti-terrorism law aim to make it easier to convict arsonists under terrorism charges.

“Our current legislation is quite useless: too many violent acts are being processed as regular crimes,” says Mayol. “We need to bring our definition of terrorism in line with those of countries such as the UK and Spain. For me, the systematic burning of trucks and churches are terrorist acts.”

Back at the reclaimed timber plantation, Llaitul remains defiant as two young Mapuche lift roof rafters into place on the new construction. “When there was no Mapuche struggle, the government did nothing for us” he says. “We’re not asking for palliative measures or integration, we want territory and autonomy for the Mapuche nation.”