TOPSHOT - Mauritania President Mohamed Ould Abdel Aziz (R) and French President Emmanuel Macron (L) meets as they arrive for the African Union (AU) summit in Nouakchott on July 2, 2018. Macron, 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