A general view taken during the opening session of the African Union (AU) on January 30, 2014 at the AU headquarters in Addis Ababa. Mauritanian President Mohamed Ould Abdel Aziz took over as African Union chairman on Thursday, replacing Ethiopian Prime Minister Hailemariam Desalegn in the one-year post. Aziz, in his opening speech, congratulated Hailemairan "for the remarkable work accomplished during his tenure," adding that "he has contributed brilliantly to strengthen the role of Africa on both continental and international levels". AFP PHOTO/Samuel GEBRU        (Photo credit should read SAMUEL GEBRU/AFP/Getty Images)