NSI — Natural Spirit Int’l

 

Natural Spirit Int’l (NSI) represents over 50 years of Kelly S. Worden’s martial discipline, forged through Modern Arnis, Renegade JKD, and real-world Close Quarter Defense.

 

NSI blends traditional warrior foundations of Technical Form, Function, and Flow with progressive, reality-based strategies to create an adaptable and highly effective personal-defense system.

 

​

​

WDS — Worden Defense System

 

The Worden Defense System (WDS) is a condensed, tactical combatives program developed between 2000–2006 for the U.S. Army 1st Special Forces Group (Airborne) Close Quarters Combat program.

 

WDS is a tightly structured curriculum built around eight intensive instructional modules, refined through the proven “Train the Trainer” method of instructor development.

 

WDS modules include:

​

• Intensive Striking

• Control Tactics

• Impact Weapons

• Improvised Weapons

• Edged Weapons

• Standing Grappling

• Dirty Dozen Defensive Maneuvers

• Additional supporting close-quarter skills

 

​

 

How NSI and WDS Work Together

 

NSI provides the philosophical and functional foundation — the principles, flow, structure, and personal evolution of the practitioner.

 

WDS delivers the tactical application — a condensed combatives program built for military efficiency and instructor-level development.

 

Two systems that stand alone independently, yet complement each other seamlessly: one rooted in tradition, one sharpened by modern combat realities.

 

​

 

Training Opportunities

 

Kelly offers small-group training, private instruction, and regional seminars focused on real-world self-protection, including:

 

• Impact-weapon skills

• Knife countermeasures / defensive methodology

• Walking-cane applications

• Close-quarter tactics

 

​

 

Practical. Direct. Proven in the real world.