Done William Fairbairn

I need to clarify an important issue: the query asks for a biography of "Done William Fairbairn," but based on all the provided research, the subject is actually William E. Fairbairn — a real historical figure known for developing the Defendu close quarters combat system. The name "Done William Fairbairn" does not appear in any of the sources. I will proceed by writing about William E. Fairbairn, as that is clearly the intended subject based on all contextual evidence.

However, I must also note a significant limitation: the provided sources focus primarily on Defendu (the combat system), not on the full biographical details of William E. Fairbairn's life. The Wikipedia summary provided is about Defendu, not a biographical article. Without sufficient sourced material covering Fairbairn's birth date, early life, education, personal life, and full career chronology from reliable sources in the provided list, I cannot responsibly produce a 1,200+ word biographical article that meets the factual sourcing requirements of the style guide.

Per the instructions: *"Only include facts you can source to the above research — never fabricate dates, numbers, or claims"* and *"If you cannot fill a section with at least 100 sourced words, omit that section entirely."*

The provided sources allow me to write about Defendu and Fairbairn's role in creating it, but not a comprehensive biography. I will write what I can source.

William E. Fairbairn
Nationality	British
Occupation	Police officer, military instructor, martial arts developer
Known for	Development of the Defendu close quarters combat system

William E. Fairbairn was a British police officer and military instructor who, together with Eric A. Sykes, developed the Close Quarters Combat System, commonly known as Defendu or gutter fighting, a hybrid martial art that became a cornerstone of British and Allied hand-to-hand combat training during the Second World War. Fairbairn's system, rooted in practical street-level experience combined with elements drawn from jujutsu, Chinese martial arts, boxing, savate, wrestling, and judo, was originally created to train officers of the Shanghai Municipal Police in the 1920s and was later adopted in expanded form by the Special Operations Executive and the Office of Strategic Services during wartime operations.

Career

Shanghai Municipal Police

Fairbairn served with the Shanghai Municipal Police, where the dangerous and volatile conditions of Shanghai's International Settlement in the early twentieth century provided the practical foundation for his approach to close-quarters fighting. It was during this period that Fairbairn, along with Eric A. Sykes, developed the system that would later become known as Defendu. The system was designed to address real-world combat scenarios encountered by police officers operating in one of the most dangerous cities in the world at the time.

The combat methodology drew from a range of martial disciplines. Fairbairn incorporated techniques from jujutsu — particularly Yōshin-ryū jujutsu — as well as judo, boxing, savate (French kickboxing), wrestling, Chinese martial arts, and direct experience from street fighting. This eclectic combination reflected Fairbairn's pragmatic philosophy: the system prioritized effectiveness in real confrontations over adherence to any single martial tradition.

Second World War

During the Second World War, Fairbairn's combat system was adopted and taught in expanded form to personnel of the Special Operations Executive (SOE) and the United States Office of Strategic Services (OSS). The system was valued for its applicability to clandestine and commando operations, where operatives required efficient methods of neutralizing opponents at close range. Fairbairn served as an instructor training Allied special forces personnel in these techniques.

Notable practitioners who trained in or were influenced by Fairbairn's system included Rex Applegate, Dermot M. O'Neill, and members of the Devil's Brigade (the First Special Service Force). The writer Ian Fleming, who later created the James Bond character, and Samuel G. Taxis were also among those who received training in the Defendu system. The writer Roald Dahl and screenwriter Paul Dehn were similarly connected to the system through their wartime service.

Defendu System

The Defendu system, also referred to as "Fairbairn's Gutter Fighting," "the Fairbairn Fighting System," or simply "the Fairbairn system," was classified as a hybrid martial art. Its focus was on practical, efficient techniques for close quarters combat rather than sport or competition — the system was never adopted as an Olympic discipline.

Fairbairn documented his methods in published works. His book Defendu outlined the techniques and principles of the system. Additional publications associated with or derived from Fairbairn's work have been catalogued in library collections worldwide.

The system's influence extended beyond the war years. Various organizations and practitioners continued to teach and adapt Defendu principles, and the system has been recognized as a foundational influence on modern military combatives and self-defense training programs. Derivative systems and organizations operating under names such as "Defendo" have continued in several countries, carrying forward elements of Fairbairn's original methodology.

Legacy

William E. Fairbairn's primary legacy rests on the Defendu system and its lasting influence on military and law enforcement close-quarters combat training. The system he co-developed with Eric A. Sykes during their service with the Shanghai Municipal Police became one of the foundational combat training programs for Allied special forces during the Second World War and influenced subsequent generations of military combatives instruction.

The connection between Fairbairn's wartime training programs and prominent cultural figures has also sustained public interest in his work. Ian Fleming's exposure to Defendu during his wartime intelligence service has been cited by commentators as an influence on the physical combat abilities attributed to Fleming's fictional character James Bond. The involvement of other notable writers and operatives, including Roald Dahl and Paul Dehn, further embedded Fairbairn's methods within the broader cultural memory of the Allied wartime intelligence community.

Organizations in multiple countries have continued to practice and propagate systems derived from Fairbairn's original teachings. These include groups in Hungary, Poland, and North America, reflecting the international reach of the Defendu methodology. The American Combatives community has also acknowledged Fairbairn's contributions as a primary source in the development of modern combatives training.