<Tr> <Th> Affiliations </Th> <Td> Dumbledore's Army </Td> </Tr> <Tr> <Th> Enemies </Th> <Td> Lord Voldemort, Death Eaters </Td> </Tr> <P> The Order of the Phoenix is a secret organisation in the Harry Potter series of fiction books written by J.K. Rowling . Founded by Albus Dumbledore to fight Lord Voldemort and his followers, the Death Eaters, the Order lends its name to the fifth book of the series, Harry Potter and the Order of the Phoenix . </P> <P> Before the Harry Potter series starts--when the character Lord Voldemort declared war on the wizarding world--Albus Dumbledore, headmaster of Hogwarts School of Witchcraft and Wizardry and an upstanding and powerful citizen of the wizarding world, attempted to take control of the situation by founding the Order of the Phoenix . Several characters joined the organisation, seeking to prevent Voldemort from taking over the wizarding world and establishing a tyrannical new world order . During this period, before the events of the Harry Potter and the Philosopher's Stone, the Order sustained heavy losses, including the murders of minor characters such as the Prewetts, the Bones and the McKinnons . The Longbottoms were also tortured to insanity at the hands of Bellatrix Lestrange . </P>

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