Airman 1st Class Elsie Delgadillo, 25th Operational Weather Squadron forecaster and Staff Sgt. Seth Reab, 355th Operations Support Squadron Survival, Evasion, Resistance and Escape, NCO in charge, practice the Spontaneous Protection Enabling Accelerated Response System Sept. 28, 2017, at Davis-Monthan Air Force Base. The SPEAR System takes advantage of the human body’s startle/flinch mechanism, enabling a user to counter an oncoming attack.