29 June 1974. In 1980, there was another attempt to secede, declaring the Tafea Nation on 1 January 1980, its name coming from the initials of the five islands that were to be part of the nation (Tanna, Aniwa, Futuna, Erromango and Aneityum). British forces intervened on 26 May 1980, allowing the island to become part of the newly independent nation of Vanuatu on 30 July 1980. Tanna and nearby Erromango were devastated by cyclone Pam in mid-March 2015, with reports of an unknown number of deaths, complete destruction of the island’s infrastructure and permanent shelters, and no drinking water. Following this, an El Niño-spurred drought further impacted on the people of Tanna. Culture and economy Population It is the most populous island in Tafea Province, with a population of about 29,000, and one of the most populous islands in the country. Isangel, the provincial administrative capital, is on the west coast near the island's largest town of Lénakel. Tanna is populated almost entirely by Melanesians and they follow a more traditional lifestyle than many other islands. Some of the higher altitude villages are known as kastom villages, where modern inventions are restricted, the inhabitants wear penis sheaths () and grass skirts, and the children do not go to public schools. According to anthropologist Joël Bonnemaison, author of "The Tree and the Canoe: history and ethnography of Tanna," their resistance to change is due to their traditional worldview and how they "perceive, internalise, and account for the dual concepts of space and time." John Frum movement The island is the centre of the John Frum religious movement, which attracts tourist interest as a cargo cult. The first John appeared at night as a spirit at a place called Green Point beach and told the people to return to their traditional way of life, or kastom. From that time kastom on Tanna has been seen as an alternative to the modernity encouraged by many missionary denominations. Yaohnanen is the centre of the Prince Philip Movement, which reveres Prince Philip, Duke of Edinburgh, the late husband of Queen Elizabeth II. The cult is examined by British writer Matthew Baylis in his 2013 book Man Belong Mrs Queen: Adventures with the Philip Worshippers. Christian missionary John Gibson Paton served in Tanna in the mid 1800s. Cannibalism was practiced before Christianity swept the island. In the biography of Paton, the horror of the pagan