Mauritania: new President Mohamed Ould Cheikh El Ghazouani sworn in Mauritania, a country roiled by a history of military coups and upheaval, sees its first transfer of power between elected leaders, as President Mohamed Ould Abdel Aziz hands over to his successor, Mohamed Ould Cheikh El Ghazouani. IMAGES of the ceremonyu AND SOUNDBITES of the President of the Constitutional Council of Mauritania and the new President of Mauritania