Like others have said, the British ones are pulled from regular soldier units. Mainly the Grenadier Guards, Coldstream Guards, Scots Guards, Irish Guards, and the Welsh Guards. And when I say regular units, I mean actual soldiers who may be sent overseas into combat. Here’s a BBC video from 2007 of the Grenadier Guards in [Helmand province Afghanistan](https://youtu.be/4lIi0dZVdyE?si=4Xq8AfMezlbgicNn).
Also, when the guards units are doing regular soldier things, it’s not unusual to see units pulled from the Royal Navy or Royal Air Force [for Kings Guard duty](https://youtu.be/vIt41IDbJaM?si=WMUjgM508a8dRN9E).
Latest Answers