President Goodluck Jonathan has sacked the Service Chiefs and appointed replacement for them with immediate effect.
Air Marshal Alex Badeh takes over from Admiral Ola as Chief of Defence Staff.
The New Chief of Army Staff is now Major-General Kenneth Tobiah Jacob Minimah who takes over from Lieutenant-General Azubuike Ihejirika.
For the Navy, Rear Admiral Usman Jibrin takes over from Vice Admiral Dele Ezeoba.
And the new Chief of Air Staff is Air Vice Marshal Adesola Nunayon Amosu who replaces Air Marshal Badeh.
President Jonathan is expected to formally present the new Service Chiefs to the Senate for confirmation.