The U.N. secretary-general is the world's chief diplomat, but most of the world doesn't get much say in who gets the nod. In the end, it's the U.N. Security Council's five permanent veto-wielding powers (the P5) -- Britain, China, France, Russia, and the United States -- that decide.
With elections still nearly a year and a half off, eager hopefuls have begun positioning themselves to succeed Ban Ki-moon as the U.N.'s secretary-general, a job high on prestige but low on real power. At this stage there is no clear front-runner. But diplomats say the candidates include a Lithuanian president, a pair of former prime ministers from Australia and New Zealand, and presidents and foreign ministers from several Latin American countries. They are facing mounting calls from a coalition of governments and advocacy groups to make their case to the wider world through public debates and addresses to the U.N. General Assembly in addition to their back-channel talks with the United States and other major powers.