PRINCE William has honoured submariners from all generations who have served their country at a sombre event in London.

The Duke of Cambridge, who is the Commodore-in-Chief of the Submarine Service, attended the Submariners’ Remembrance Service and Parade on Sunday at Middle Temple in the heart of London.

The Duke, who attended by himself, looked dapper in a navy suit that was accompanied by military medals.

The annual service honours submariners who have “Crossed the Bar” in service to their country.

The Prince, who has served in the Royal Navy, was made Commodore-in-Chief in 2006.

As part of his two-month attachment to the Navy in 2008, William took part in a secret exercise that was based on hunting down an enemy submarine and sinking it.

The exercise saw the Prince submerge on HMS Talent off the coast near Plymouth while also spending a night onboard.

He is also a Royal Bencher of Middle Temple.

The Duke laid a wreath during the service and took the salute before joining guests for a reception in Middle Temple Hall.

About 400 serving and veteran submariners attended, including veterans of WWII such as Admiral of the Fleet Lord Boyce KG GCB OBE DL, Patron of the Submariners Association.

The annual ceremony began in 1923 following the unveiling of the National Submarine Memorial in 1922 on Victoria Embankment, and is held on the Sunday before the national Remembrance Day Parade.

Earlier this week, the Duke attended the Coach Core Essex program in Basildon with his wife, Catherine the Duchess of Cambridge.