John "Lofty" Wiseman

John 'Lofty' Wiseman is a British author and survival consultant who served 26-27 years in the Special Air Service (SAS), joining the Parachute Regiment in 1958 and becoming the youngest person to pass SAS selection at age 18 in 1959. He rose to Sergeant Major or Warrant Officer, headed operational research, trained US Green Berets for Delta Force, and founded the SAS Counter-Terrorist Team. After retiring, he authored the renowned SAS Survival Handbook based on SAS training techniques.[1][2][3][4][5]