York is a retired U.S. Army Officer.  He has served in key leadership positions and has served as a Training Officer, Range Officer and Safety Officer.  He has also served as a Base Defense Officer and is a graduate of the U.S. Army Command and General Staff College.  As an Iraq War Veteran, York understands what Run, Hide, Fight really means.
As an NRA Certified Instructor he holds Certifications in Home Firearm Safety, Refuse To Be A Victim, Rifle, Pistol, Defensive Pistol, NRA Pistol Simulation, Shotgun, Personal Protection in the Home, Personal Protection Outside the Home and NRA CCW (Concealed Carry), Range Safety Officer.
Finally, York is a Certified Training Specialist and holds a Certificate from the University of Washington, where he learned from Learning Psychologists about Adult Learning Theory, Curriculum Development and Delivery Methods.