In 1968, New York City was the stage for the International Convention of Martial Artists, attracting masters and influencers from around the world. One notable participant was Ronald Duncan, whose groundbreaking demonstration of ninjutsu techniques captivated the audience, establishing him as the Father of American Ninjutsu.

Born in Panama in 1938, Professor Duncan gained recognition for his ninjutsu skills. In 1956, Duncan made waves by opening his first martial arts school in New York, where he introduced Ninjitsu to the American scene. 

Despite acknowledgment from the Japanese government, he faced exclusion from Black Belt Magazine for several years due to a disagreement with the editor. However, he was later recognized as a martial arts pioneer by the publication.

His unwavering commitment to pioneering its teachings solidified his place in history. Alongside Stephen K. Hayes and Masaaki Hatsumi, Duncan played a key role in popularizing Ninjutsu from the 1970s to the 1990s, culminating in their joint participation at the prestigious 1987 Ninja Summit.

Duncan's martial arts expertise was vast, including proficiency in various disciplines such as Judo, Hakko Ryu Jujitsu, Dai-Nippon Jujitsu Ryu, and more. His global fame skyrocketed with appearances on ABC's Wide World of Sports in the Oriental World of Self Defense Live from Madison Square Garden, hosted by Aaron Banks.

Renowned for his mastery of Ninjutsu, Duncan possessed skills in knife throwing, firearms, and stealth techniques. Combining these abilities with his composed demeanor, he pioneered the Way of the Wind Fighting System, reflecting his innovative ethos and commitment to self-defense.

As a teacher, Duncan influenced notable figures like Ron Van Clief, who credited him as a significant mentor who shaped his path to becoming a Hall of Fame film star and champion.

Today his legacy lives on with his son Gregory, who carries onon the family tradition with the Way of the Winds School of Self-Defense in New York. 

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