Guerrilla groups from across America will today descend on an Amazonian jungle town to swap tips on winning the revolutionary struggle.
Left-wing terrorist groups are to join with street demonstrators fresh from battle in Seattle in a corporate-style convention to discuss the path to power.
More than 2,500 delegates, including the notorious Revolutionary Armed Forces of Colombia (FARC), are gathering in Brazil for a conference of American revolutionaries.
Representatives from the Mexican Zapatistas, the guerrilla group championing Indian rights, and the Blank Panthers will also take part in the five-day event.
Mr Manoel Lima Amarel, event co-ordinator, said: "We are very pleased that so many minority groups are joining together in Brazil to discuss their causes. We believe it is important for all oppressed Americans to support each other and to work as one."
Conference organisers chose the city of Belem - situated on the banks of the Amazon - because of its historical significance.
In 1835 it was the site of a failed uprising by native Indians protesting against the slave trade.
"Today, America's minorities are still suffering injustices," says Amarel. "Having this conference in Belem reminds us how little has changed in the past 160 years."
Despite the presence of known paramilitary groups, the Brazilian authorities have not objected to the Humanities Against Neo-Liberalism summit.
A spokesperson for the civil police in Belem said: "We will be keeping a close eye on them and certainly listening out for any inflammatory talk, but as long as these people behave themselves there won't be any problems."
The authorities have even allowed some delegates to camp inside school halls and local sports centres, while others are staying free of charge at family homes in 20 community.
Mr Magno Carvalho, founder of the Brazilian Solidarity Committee for the Zapatistas, says: "Support from Brazil has always been regarded as crucial to our movement's success.
"We hope this conference will encourage more people to join our cause. It's an opportunity to trade experiences and also learn new methods of action. If all the groups work together, then there is every chance of success in the future."
Conference organisers insist that the convention will be peaceful and have banned delegates from exchanging information on guerrilla warfare techniques. "This summit is not about violence," says Amarel, "it's about ideology.
"There are other ways to destroy the chains of capitalism without resorting to aggression."
Using the slogan "All the winds have a destiny", alongside the logo of a native Indian woman with a child in her arms, the conference has been openly advertised on the Internet to all would-be revolutionaries.
The MST, Brazil's land-less peasant movement, trade unions and indigenous Indian tribes are also attending.