General GA Umelo is a retired senior military officer who served in the Nigerian Army and retired in the year 2023. Gen. Umelo had BSc in Chemistry (NDA), a Masters Degree Holder in Strategic Studies (University of Ibandan and while in service,he attended several leadership and risk management courses and held several important positions. He served as Senior Instructor, School of Artillery Directing Staff Armed Forces Command and Staff College, Commanding Officer Nigeria Battalion 15 United Nations Mission in Liberia, Commanding Officer 323 Regiment, Commanding Officer 313 Artillery Regiment, Commander 38 Artillery Brigade, Commander Sector South United Nations African Union Hybrid Mission in Darfur Sudan, Director Campaign Planning Army Headquarters Department of Operations, Director Peacekeeping Operations Army Headquarters, General Officer Commanding 81 Division Lagos, Director General Armed Forces Simulation Centre and ended his career as the Director General Defense Research and Development Bureau.