Ọ̀gá àwọn Ọmọṣẹ́ Agbógun tàbí Ọ̀gá Ọmọṣẹ́ Agbógun lásán (Chief of Army Staff ní èdè gẹ̀ẹ́sì) ni ipò tó gajùlọ òsìṣẹ́ ológun ní ibiṣẹ́ Agbógun ará Nàìjíríà. The position is often occupied by the most senior commissioned officer appointed by the Commander-in-Chief of the Armed Forces of Nigeria. The Chief of Army Staff reports to the Chief of Defence Staff, who also reports to the Defence Minister. The Statutory duty of the Officer is to formulate and execute policies towards the highest attainment of National Security and operational competence of the force. Following is a chronological list of officers holding the position of General Officer Commanding (GOC) or Chief of Army Staff (COAS). Ọjọ́ àwọn Agbógun ará Nàìjíríà "Nigeria's President Goodluck Jonathan sacks military chiefs". BBC News. Retrieved June 9, 2015.  "President sacks Service Chiefs, names replacements". Daily Independent. Archived from the original on July 10, 2015. Retrieved June 9, 2015.  "Minimah, Jibrin, Amosu Appointed Service Chiefs". Thisdaylive. Retrieved June 9, 2015.  "Chief of Army Staff vows military will end insurgency".