President Muhmmadu Buhari has sacked the service chiefs and appointed their replacements.
Presidential spokesman Femi Adesina announced this on Tuesday.
Mr Adesina tweeted: “PMB appoints new Service Chiefs. Maj Gen LEO Irabor, CDS (Chief of Defence Staff), Maj Gen I Attahiru, Army, Rear Adm AZ Gambo, Navy, AVM IO Amao, Air Force.
“He congratulates outgoing Service Chiefs on efforts to bring enduring peace to the country.”
The outgoing service chiefs include General Abayomi Gabriel Olonisakin (Chief of Defence Staff); Lt. Gen. Tukur Buratai (Chief of Army Staff); Vice Admiral Ibok Ibas (Chief of Naval Staff); and Air Marshal Sadique Abubakar (Chief of Air Staff).
The president’s action follows months of calls for the service chiefs to be replaced to combat increasing security challenges.