Summary of Nigeria's history up till the civil war.
Post 1960, Northerners occupied most top govt positions while Southerners comprised most top military positions.
The govt was rife with nepotism & Ethnocentric appointments.

Wike #Obasanjo Nnamdi Kanu Mikano #vawulence Lawyers 9 soldiers (8 Igbo 1 yoruba), citing political corruption & marginalization, attempted a coup that targeted key govt & military officials, most of whom were Northerners,few eastern, western & mid-westerners in a bid to install a Westerner political prisoner (Awolowo) as president