Brigadier NS ‘Tank’ Nash CBE was educated at Latymer Upper School and served in the Honourable Artillery Company (1957-1960) and thereafter in the Army Catering Corps (1960-1991). He was the Bursar of Loretto School (1991-1996). He has an MA in Military History from Birmingham.
For 30 years he wrote humour under the pen name ‘Sustainer’ and his work was published internationally. Three anthologies of his column were published. His books for Pen and Sword include K Boat Catastrophe, ‘Strafer’ Gott – Desert General, Chitral Charlie – The Rise and Fall of Major General Charles Townshend, Valour in the Trenches, Betrayal of an Army - Mesopotamia 1914 -1916, Logistics in the Vietnam Wars and The Siege that Changed the World.
He lectures on military history and lives in Malmesbury, Wiltshire.