Codebreaker Raymond Roberts will receive an MBE today for his services to the WWII decryption centre and codebreaking.
One of the court founder members of the Testery section at Bletchley, he was tasked with breaking the German High Command's Tunny code.
The decryptions are credited to helping shorten the war by at least two years.
Captain Roberts worked at Bletchley Park, Buckinghamshire, until the end of the war, he is now the last survivor of the nine cryptanalysts who worked on Tunny.
He has spent the last four years campaigning for acknowledgement of his colleagues.
More top news
Two police officers face a gross misconduct hearing after stopping at McDonald's before attending an emergency call for a suicidal woman.
International Development Secretary, Priti Patel, urged the rest of the world to 'act now' to help millions of people at risk of starvation.
Nail-biting footage of two thrill seekers climbing to the top of One Canada Square in London's Canary Wharf has emerged online.