Ban Ki-moon is a South Korean politician and diplomat who served as the eighth secretary-general of the United Nations between 2007 and 2016. Prior to his appointment as secretary-general, Ban was the South Korean minister of foreign affairs and trade between 2004 and 2006. Ban was initially considered to be a long shot for the office of Secretary-General of the United Nations; he began to campaign for the office in February 2006. As the foreign minister of South Korea, he was able to travel to all the countries on the United Nations Security Council, a manoeuvre that subsequently turned him into the campaign's front-runner.