More than 100 service personnel have been honoured by the Queen in the annual New Year Honours list.
Admiral Sir Philip Andrew Jones, who was First Sea Lord from 2016 until 2019, will be awarded the highest honour, the Order of the Bath - Grand Cross.
Adm Jones left the service in June after more than 40 years in the Royal Navy.
Admiral Jones began his previous post as Fleet Commander in 2013 when he was serving as a Vice Admiral, which saw him oversee the day-to-day operations of the Naval Service.
Companion of the Baths go to Royal Navy colleague, Rear Admiral Timothy Charles Hodgson and Major General Timothy John Bevis of the Royal Marines.
More than 20 Order of the British Empire honours have been awarded to all three military services.
Lieutenant Colonel Linda Elizabeth Orr is among the British Army personnel to be honoured for her services to the Royal Army Medical Corps.
Group Captain Simon Edward Blackwell took one of 7 OBEs for service to the Royal Air Force.
While Commander Andrew Michael Donaldson, Commodore Henry Duffy and Captain Michael Alan Salmon will also receive OBEs for the Royal Navy.
Ninety-four-year-old Normandy veteran Harry Billinge from Cornwall is made an MBE for services to charity after he raised more than £10,000 towards a national memorial for his fallen comrades.
Harry Billinge was 18 when he landed on Gold Beach on 6 June 1944.
Last June, he travelled to Normandy to take part in the 75th-anniversary commemorations of the D-Day landings.
He also holds France's highest award, the Legion d'Honneur and has taken part in charity work in Cornwall. Mr Billinge collected donations for the Royal British Legion Poppy Appeal for 64 years.
A GP who served for 25 years in the military and has helped provide mental health support for thousands of veterans has also been appointed an OBE.
Dr Jonathan Leach has been recognised for services to general practice.
Within his position as an NHS England medical director for military and veterans' health, he helped create 600 surgeries to support military veterans.