Nigeria, Feb. 10 -- After more than four years in detention, Nnamdi Kanu, the leader of the outlawed Indigenous People of Biafra (IPOB), remains defiant about his calls for the independence of Biafra.

Speaking to reporters in a courtroom at the Federal High Court in Abuja on Monday, Mr Kanu reaffirmed his commitment to the cause, citing his legal right to seek a sovereign Biafra nation. "That is why I do what I do; I agitate for Biafra, I agitate for Biafra. by my right to agitate, my right," he said, looking into journalists' cameras.

Agitations for the secession of Nigeria's then Eastern region - today's five states of the South-east - as an independent Biafra nation prompted Nigeria's Civil War in the late 1960s.

Present day agitato...