[Centre 4s] Nouakchott -On February 24 and 25, the G5 Sahel Summit and the Alliance for the Sahel will be held in Nouakchott, Mauritania. In that context, a reminder and observations may be needed. A number of misunderstandings -- as well as false information -- muddle the Sahel Sahara crisis. That contributes to worsening the crisis and to delaying its resolution. To help understand it, clarification is needed.