Book excerpt: The historian and author of Postwar Counterinsurgency and the SAS reveals the full story of how the Special Air Service Regiment began during WWII. Britain’s elite Special Air Service Regiment is one of the most revered special-ops units in the world. Its high-profile operations include the storming of the Iranian Embassy in London in 1980 and the hunt for Osama bin Laden in southern Afghanistan following 9/11. Since its inception during the Second World War, the SAS has become a byword for the highest possible standards in both conventional and unorthodox methods of warfare. In SAS Zero Hour, military historian and SAS expert Tim Jones offers fascinating new insight into how this elite regiment began. It is commonly held that the unit was the brainchild of just one man, David Stirling. While not dismissing Stirling’s considerable contribution, Jones’s historical investigation reveals many other factors that played a part in shaping the SAS, including the roles of military deception specialist Dudley Clarke, Field Marshals Archibald Wavell and Claude Auchinleck, and others. Drawing extensively on primary sources, as well as reassessing the more recent regimental histories and memoirs, SAS Zero Hour is “The most comprehensive and enlightening version of these seminal events yet” (Sir Ranulph Fiennes, from the Forward).