Argentina's Peronist President Christina Kirchner has been largely responsible for raising the temperature over the Falklands as the 30th anniversary of the successful war undertaken by Margaret Thatcher's Conservative government to regain the islands after the invasion by Argentina's military junta approaches.

CNN: Argentina cruise ships caught in diplomatic storm

The leaders attending the Progressive Governance Conference in the seaside resort city of Vina del Mar are Presidents Michelle Bachelet of Chile, Luiz Inacio Lula da Silva of Brazil, Christina Fernandez de Kirchner of Argentina and Tabare Vasquez of Uruguay as well as Prime Ministers Gordon Brown of Britain, Jose Luis Rodriguez Zapatero of Spain and Jens Stoltenberg of Norway.

CNN: Biden meets leaders ahead of G-20 summit