The Elders Take Part In London's Walk Together Event In Memory Of Nelson Mandela

LONDON, ENGLAND - OCTOBER 23: South Korean diplomat Ban Ki-moon (L) and Ghanian diplomat Kofi Annan (R), both former Secretary-Generals of the United Nations, lead a procession to Parliament Square during the Elders Walk Together event on October 23, 2017 in London, England. Members of The Elders, a group formed by late South African president Nelson Mandela which includes Kofi Annan, Ban Ki-moon and his widow Graca Machel, delivered speeches at Trafalgar Square before joining together to walk to the Mandela statue in Parliament Square for candlelit vigil in an event in memory of Nelson Mandela. (Photo by Carl Court/Getty Images)