HAMBURG, GERMANY - JULY 07:  President Jacob Zuma attends the G20 leaders retreat as part of the G20 summiton July 7, 2017 in Hamburg, Germany. Leaders of the G20 group of nations are meeting for the July 7-8 summit. Topics high on the agenda for the summit include climate policy and development programs for African economies.  (Photo by Friedemann Vogel - Pool/Getty Images)