Al’umar Isu rukuni ne na ƙabilar Ibo a kudu maso gabashin Najeriya . A zamanin jahiliyya, an killace ƙabilar Ibo daga mamayar waje ta hanyar dazuzzuka na yankin, wanda kuma ya haifar da tasirin karfafa bambancin. Don haka yayin da mayaƙa maƙwabtan Owerri suka raina mutanen Isu, waɗanda suke 'yan kasuwa. Isuama shine sunan da aka ba yankin kudu maso tsakiyar Igboland, wanda ya kasance babban tushen bayi a lokacin cinikin bayi ta hanyar Trans-Atlantic . An ɗauke sunan a ƙetaren Tekun Atlantika, inda aka samo shi da sunan al'ummar Cuba ta Carabali Isuama. Wannan suna yana girmama kakannin kungiyar a yankin Isuama na Igboland zuwa arewacin mutanen Kalabari Ijaw . A wani lokaci da Isuama harshen da aka magana a Cuba, amma a ƙarshe shi da sauran Cross River harsuna aka gudun hijira da daidaitattun Abakua harshen da ake kira Brikamo . Ya zuwa watan Satumba na 2010 basaraken gargajiyar Amandugba, a arewacin ƙaramar hukumar Isu ta jihar Imo shine Eze Innocent Ikejiofor. Wannan wata ya tambayi 'yan'uwansa a Amurka ya goyi bayan sake za ~ arsa karo na Gwamna Ikedi Ohakim a zaben saboda a watan Afrilu 2011.