One of my colleagues from medical school was appointed medical officer to one of the household cavalry regiments. (She was very posh and very horsey.) She was the first woman officer to ride with the regiment. She spent a great deal of time sharing with us about designing her dress uniforms, including her riding uniform and whether she would ride side saddle (she didn't). Although technically in the RAMC she had to have a guards cavalry officer uniform, with red tabs as RAMC (which differ in some mysterious military way from the red tabs of general staff).Well, in the UK we have a big parade every year on the Monarchs 'official' birthday when detachments of the Guards Regiments parade their Colours and the monarch travels in a carriage escorted by Cavalry to the Horseguards parade ground off Whitehall.
It's a big thing, it's televised live every year.
Last years event, edited highlights, the Irish Guards colours were paraded last year.
Plus, every day the Guards at Buckingham Palace and St James' Palace are changed every day and the new guard marches form the barracks with a band and the 'old guard' marches back.

