Thomas LeBrun began his martial arts training in the early 1970s, inspired by Bruce Lee and Joe Frazier. He formally studied Judo, Tae Kwon Do, and Okinawan Kenpo, later expanding into Yoshitsune Ju-Jitsu under Sensei Michael DePasquale Sr. and Jr., as well as Aikido, Arnis, pressure-point applications, and boxing. His dedication earned him rank in multiple disciplines.

LeBrun’s path led him to the Close Protection field, where his martial arts knowledge evolved into specialized training in defensive arts, non-traditional weapons, and personal security. He has protected high-profile clients such as Bill Gates, Elton John, and Whitney Houston, working in more than 45 countries. In 2009, he created LeBrun’s American Combatives, a modern system bridging traditional martial arts with real-world application, later authenticated by Grand Master Ron Van Clief and Shidoshi Glen Perry.

A recognized authority in defensive arts, LeBrun earned his 10th dan in Hogoshin-Do in 2022 and has been honored with multiple awards, including Security Expert of the Year (2021) and induction into the Ultimate Warrior Class (2022). He is also a multi-award-winning, #1 international best-selling author of Hiding in Plain Sight and the Cameron Stone series, and was named Best Action & Thriller Author in Alabama, United States of 2025.