From 1968 onward, the war fell into a form of stalemate, with Nigerian forces unable to make significant advances into the remaining areas of Biafran control due to stiff resistance and major defeats in Abagana, Arochukwu, Oguta, Umuahia (Operation OAU), Onne, Ikot Ekpene, and etc. [6] But another Nigerian offensive from April to June 1968 began to close the ring around the Biafrans with further a