Sandhurst Military School
From Tardis Wiki, the free Doctor Who reference
Royal Military Academy Sandhurst — often refered to as just Sandhurst — was a training centre for British Army officers.
Alistair Gordon Lethbridge-Stewart attended Sandhurst with Billy Rutlidge. (DW: The Web of Fear, Mawdryn Undead) According to Jo Grant, he was reluctant to talk about his time at Sandhurst. (DWM: Target Practice) In the mid-2000s, Lethbridge-Stewart was present at Sandhurst when he was taken to the Disunited Planets. (DWM: The Warkeeper's Crown)