The modern day close combat has its roots in English SAS, developed by Master W.E. Faibairn during World War II. The techniques presented in this film are very efficient, fast and easy to carry out. They are only to use in extreme situation of self defense or the defense of others, respecting self defense laws. COS Close Combat presented here is inspired by Israeli Close Combat Krav-Maga, but also by French, Belgian and English Close Combats. This film is also a teaching tool for instructors from Operational System Close Combat.

ALAIN FORMAGGIO:
- Founder of Operational System Close Combat
- Worldwide Technical Director of WKMF Krav-Maga
- Chief Instructor of Paris police forces training center
- International Expert, 8th Degree of professional Self-Defence

JEAN-MICHEL LEHRO:
- Founder of Operational System Close Combat
- Europe Technical Director of WKMF Krav-Maga
- Specialised agent in prisonner shift
- Former Commando Instructor