Mainly based in Catterick North Yorkshire, this is the Royal Lancer TRF (Tactical Recognition Flash). 

These are the Armoured cavalry regiment of 1 Armoured Infantry Brigade. The badge signifies their MOTTO 'Death Or Glory' one of the most recognisable Tactical Flashes 

Non-Velcro, Dimensions are 5cm x 5cm, Official Issue TRF, Subdued Olive/black