At the successful completion of his cadet training, he was commissioned on 11 March 1972 into the Nigerian Army Signal in the rank of Second Lieutenant with effect from 13 October 1969.

Multi-language instructions were then prepared while Army Signals contacted all nations concerned to report details of samples and estimated time of arrival.

On his return to Nigeria after the war, he was given back his old position of Army Signals Inspector and it seemed the last chapter had been written in his army career.

At the end of the war, he was a Radio Specialist in the Grand Headquarters and Commander of the Army Signals School at Namur in occupied Belgium.

He also served in World War I as Director of Army Signals for the British Expeditionary Force.

Over the years the Squadron has changed hands between Army Signals, Communication Command, Director Information Services Organization and back to the Army.

Armee-Nachrichten-Führer - Army Signals Officer, served on the staff HQ of an Army.

Aircrew radio operators were trained by the Army Signals Corps and commissioned as lieutenants but were assigned to the USAAF.

Much later, Mamudu became governor of Gongola State and a Commander of the Nigerian Army Signals Corps.

The Army Signals Intelligence Corp and the FBI conducted a thirty-eight year investigation into communist espionage with mixed results.