Mark Aston (Author) Mark "Splash" Aston spent a lifetime in the Army, serving for 39 years in call. Joining the Glosters, as a teenager, he passed selection in 1978 and joined the Mountain Troop of D Squadron, 22 SAS, the only squadron involved in direct action against the Argentine forces. He finished his career as the SAS RSM at the Parachute School. Stuart Tootal (Author) Stuart Tootal is a former army Colonel, a best-selling author and currently a global head in the corporate security sector. His exceptional military career has seen him serve in Northern Ireland and the Middle East.