Hugh Trefusis Brassey joined in the Royal Scots Greys as second lieutenant, he took part  in the Normandy Landings and remained in his current position throughout his tenure.
He joined in the Royal Scots Greys as second lieutenant in 1935 During the Second World War, he was involved in the Syria-Lebanon Campaign in 1941 and the Battle of El Alamein in the following year. In 1974, Brassey was appointed colonel of the Royal Scots Dragoon Guards. The regiment, through the Royal Scots Greys, is the oldest surviving Cavalry Regiment of the Line in the British Army. 
