Deserters surviving in the Pichicera burrow
During the 1982 Malvinas/Falklands War, a band of Argentine conscripts desert and dig an underground refuge, the 'Pichicera', naming themselves 'pichis' after the burrowing armadillo. They survive the cold and shelling by stealing from Argentine supply lines and bartering with the British for food, fuel and cigarettes. By the end most of them die in the hole, and the survivor Quiquito tells the story afterward to a writer.
