The second military coup d' e tat in Nigeria took place on

The second military coup d'état in Nigeria took place on July 29, 1966. This coup was carried out by a group of military officers, mainly from the Igbo ethnic group, in response to the first military coup which had taken place on January 15, 1966. The January 1966 coup was led by mostly Igbo officers who overthrew the democratic government of Nigeria, which led to the assassination of several prominent Nigerian politicians from the Northern and Western regions. The July 1966 coup was a retaliatory response by Northern Nigerian military officers who overthrew the military government that came to power after the January coup. The coup was a violent and bloody one, and it led to the death of the then Head of State, Major General Johnson Aguiyi-Ironsi, who was from the Igbo ethnic group. This event further exacerbated the already-tense ethnic and regional divisions within Nigeria, which ultimately led to the outbreak of the Nigerian Civil War in 1967.