The 192-nation United Nations General Assembly has voted unanimously to elect Ban Ki-moon for a second five-year term as UN Secretary General. Mr Ban's second term will commence from January 1, 2012. With no contenders to throw a challenge for the post, the assembly approved the new term by consensus. Mr Ban declared his candidacy two weeks ago and had the formal backing by the Security Council on Friday. All regional groups at the UN also endorsed him.Mr Ban has termed his re-election as a “very great honour beyond expression.”