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President of the Democratic Republic of Congo opposition party Union for Democracy and Social Progress (UDPS) Etienne Tshisekedi (R) and brother of Moise Katumbi (the former Governor of Katanga) Raphael Katebe Katoto attend a signature agreement with main opposition parties of the Democratic Republic of Congo on June 10, 2016 in Genval, outside Brussels as they gather against President Joseph Kabila's expected bid to remain in office. / AFP / THIERRY CHARLIER (Photo credit should read THIERRY CHARLIER/AFP/Getty Images)

President of the Democratic Republic of Congo opposition party Union for Democracy and Social Progress (UDPS) Etienne Tshisekedi (R) and brother of Moise Katumbi (the former Governor of Katanga) Raphael Katebe Katoto attend a signature agreement with main opposition parties of the Democratic Republic of Congo on June 10, 2016 in Genval, outside Brussels as they gather against President Joseph Kabila's expected bid to remain in office.  / AFP / THIERRY CHARLIER        (Photo credit should read THIERRY CHARLIER/AFP/Getty Images)