Mauritanian President Mohamed Ould Abdel Aziz waits for the arrival of the French President at Nouakchott airport on July 2, 2018. The French President making an exceptional appearance at an African Union (AU) summit, was expected to discuss hurdles facing a five-nation French-backed anti-terror unit, the "G5 Sahel" force. African leaders are gathered in the Mauritanian capital for the final day of a summit overshadowed by security issues after jihadist rebels hammered two fragile Sahel states in successive attacks. / AFP PHOTO / POOL / Ludovic MARIN