Banjul, The Gambia (PANA) ? Gambian President Adama Barrow left Banjul on Saturday for Nouakchott, Mauritania to attend the 31st Ordinary Session of the Assembly of Heads of State of the African Union (AU), holding 1-2 July 2018 under the theme 'Winning the fight against Corruption: A sustainable path to Africa?s Transformation'.