This photo taken on January 14, 2011, in Abuja, shows Defence Minister Bello Mohammed (L) raising the hand of then national chairman of the ruling People's Democratic Party (PDP) and presidential candidate Goodluck Jonathan during a campaign rally. On June 22, 2012, Nigeria's President Goodluck Jonathan sacked his national security adviser Lt. General Owoye Azazi and defence minister Dr. Bello Mohammed following mounting criticisms after a spate of attacks by the radical Islamists of Boko Haram in northern Nigeria states of Yobe, Kaduna and Borno. General Owoye Azazi was replaced by Sambo Dasuki.