Oke Nnachi was the son of Nnachi and introduced the idea of bring Akpa troops to help during the Aro-Ibibio wars. After the short dynasty of Osim and Akuma Nnubi of Akuma, Oke Nnachi became king of Arochukwu. His descendants still retain the throne. Nnachi is the one of the founding fathers of Arochukwu during the conclusion of the 17nth century. ... The Akpa are an ethnic group in several Arochukwu communities. ... Combatants Igbo and Akpa Ibibio Commanders Osim and Akuma Nnubi, Oke Nnachi, Nnachi, Kakpokpo Okon, Agwu Inobia, etc. ... Osim and Akuma Nnubi were brothers and merchant princes of the Akpa people from the east of the Cross river in the late 17nth century. ... Arochukwu (formerly and sometimes still Arochuku) is the third largest town in Abia state in southeastern Nigeria. ...