Sudan's President Omar Hassan Ahmad al-Bashir arrives for the 27th African Union (AU) summit at the Kigali International Airport in Kigali on July 16, 2016. 
A recent flare-up of deadly violence in South Sudan will dominate the agenda as heads of state gather July 17 for a key African Union summit in the Rwandan capital Kigali.  / AFP / CYRIL NDEGEYA        (Photo credit should read CYRIL NDEGEYA/AFP/Getty Images)