Operation Auca was an attempt by five Evangelical Christian missionaries from the United States to make contact with the Huaorani people of the rainforest of Ecuador. The Huaorani, also known as the Aucas (the Quechua word for "savage"), were an isolated tribe known for their violence, both against their own people and outsiders who entered their territory. With the intention of being the first Protestants to evangelize the Huaorani, the missionaries began making regular flights over Huaorani settlements in September 1955, dropping gifts. After several months of exchanging gifts, on January 2, 1956, the missionaries established a camp at "Palm Beach", a sandbar along the Curaray River, a few miles from Huaorani settlements. Their efforts culminated on January 8, 1956, when all five—Jim Elliot, Nate Saint, Ed McCully, Peter Fleming and Roger Youderian—were attacked and speared by a group of Huaorani warriors. The news of their deaths was broadcast around the world, galvanising the missionary effort in the United States and sparking an outpouring of funding for evangelization efforts around the world. Their work is still frequently remembered in evangelical publications, and in 2006, was the subject of the film production End of the Spear. Several years after the deaths of the men, the widow of Jim Elliot, Elisabeth, and the sister of Nate Saint, Rachel, returned to Ecuador as missionaries to live among the Huaorani, eventually leading to the conversion of many, including some of the killers of the men.