President of Nigeria became the newly elected civilian president. Obasanjo served two terms in office. In May 2007, Alhaji Umaru Yar'Adua was sworn in as President of the Federal Republic of Nigeria, the 13th head of state of Nigeria. Yar'Adua died on 5 May 2010 in the Presidential villa, in Abuja, Nigeria. On 6 May 2010, the Vice President Goodluck Jonathan was sworn in as President of the Federal Republic of Nigeria and the 14th head of state. On 29 May 2015, Muhammadu Buhari was sworn in as President of the Federal Republic of Nigeria and the 15th head of state after winning
Head of state Head of state A head of state (or chief of state) is the public persona that officially represents the national unity and legitimacy of a sovereign state. Depending on the country's form of government and separation of powers, the head of state may be a ceremonial figurehead or concurrently the head of government. In the parliamentary system the head of state is the "de jure" leader of the nation, because the leader "de facto" is the prime minister. In contrast, the semi-presidential system has both heads of state and government as the leaders "de facto" of the nation (in practice