Mr. Nevils served 25 years in active military service, two years as an Airborne Ranger in the 1st Ranger Battalion, then 23 years in the Special Forces (Green Berets), serving in a variety of assignments in 7th and 3rd Special Forces Groups and the JFK Special Warfare Center and Schools. Mr. Nevils retired in early 2013 as a Sergeant Major, the highest enlisted rank in the U.S. Army. During his career, he worked in numerous countries in South and Central America conducting Counter-Narcotics and Foreign Internal Defense missions. Mr. Nevils trained foreign Tier 1 hostage rescue units (Military and Police) in Close Quarters Combat, sniper operations, integrated assaults, and Military Free Fall operations (HALO). Mr. Nevils also trained allied Police Units in Personnel Security Details (PSD) for high level government officials.