Nigeria’s Ambassador to Sierra Leone Henry Omaku has restated President Muhammadu Buhari’s firm commitment to assisting Sierra Leone.He restated the commitment when he presented his letter of credence to President Julius Maada Bio on Saturday in the Country’s capital, Freetown.Mr Omaku reiterated the relationship that both countries have and assured to sustain it in their interest.Nigeria’s high commissioner who felicitated with President Julius over his country’s 60th anniversary, offered himself to be a part of its nation-building policies.President Julius says his country remains indebted to Nigeria for its support which centres on peacebuilding, health and Education.