KIGALI, July 18, 2016 (Xinhua) -- Rotating African Union chairperson Idriss Deby (R), President of the Republic of Chad, and President of Rwanda Paul Kagame show their e-passports at the opening ceremony of the 27th ordinary session of the AU Heads of States in Kigali, capital of Rwanda, on July 17, 2016. African leaders on Sunday gathered at Rwanda's capital Kigali for their biannual meet with the launch of the continent's first-ever African e-passport. (Xinhua/Pan Siwei)