(AGI) Lagos, Mar 17 - No trace has been found of over 200Nigerian students, kidnapped by Islamist militants of BokoHaram in Chibok, in Borno State, on Apr. 14 last year, reportedthe chief of the Nigerian armed forces, General KennethMinimah, during an announcement on the re-conquest of largeparts of the northeast of the country. The general said thatthe states of Yobe, Adamawa and Borno, where the Jihadists hadbeen attempting to establish their Islamic caliphate, have beencompletely liberated and work is underway to rebuild governmentfacilities and ensure security. Boko Haram, which has declaredallegiance to the Islamic State (IS), now controls only threeareas in the northeast of the country after a series ofmilitary victories. Earlier this year, the Islamists tried tocreate an Islamic caliphate in the north of the country, andcontrolled 20 areas. "We have three local governmentsremaining, Abadam, Kalabaldi and Gwoza, and we are optimisticthat with time we will liberate those," Lieutenant-GeneralTobiah Minimah, the army chief of staff, told reporters.. .