‘Paddy’ Mayne was one of the most outstanding special forces leaders of the Second World War. Hamish Ross’s authoritative study follows Mayne from solicitor and a rugby international to troop commander in the Commandos and then the SAS, whose leader he later became and whose annals he graced, winning the DSO and three bars, the Croix de Guerre and the Légion d’Honneur. Mayne’s achievements attracted attention, and after his early death legends emerged, based largely on anecdote and assertion. Hamish Ross’s closely researched biography challenges much of the received version, using contemporary sources, the official war diaries, the chronicle of 1 SAS, Mayne’s papers and diaries, and a number of extended interviews with key contemporaries. It has the support of the Mayne family and the SAS Regimental Association. In Ross’s analysis Mayne is a dynamic, yet principled and thoughtful man, committed to the unit’s original concepts; not flawless, but whose leadership qualities and tactical brilliance in the field secured the reputation of the SAS.