Following their final tour where the numerals XII were taken into action in their tercentenary, three officers and seven soldiers of 9/12 L marched into St Peter's square at the head of the band of the Royal Armoured Corps, in front of 24,000 people
During Britain's war with France, the 12th Light Dragoons were put ashore at Civitavecchia, north-east of Rome, on their first overseas tour in 1794.
People across the UK are also marking this milestone by attending or organising their own events as the nation comes together to celebrate.
A series of national commemorative events will take place in London, and community events and celebrations are being organised across the country over the weekend of 8-10 May, the 70th anniversary of Victory in Europe.
Its independent and confidential medical welfare service is provided to the Armed Forces community whether they are in hospital, rehabilitation or recovery centres. There are offices throughout Germany, UK, Northern Ireland and Cyprus.