Zimbabwe's President Robert Mugabe,left, and his wife Grace arrive for celebrations to mark his 90th birthday in Marondera, east of Harare, Sunday, Feb. 23, 2014. In July, Mugabe who has ruled the nation for 33 years since 1980, won disputed elections for another five-year term that will take him to... (AP Photo/Tsvangirayi Mukwazhi)