Question: What man, also known as mi Sde-Or, created a military self-defense system developed for the Israel Defense Forces?

full_context: Document 1: Jim Arvanitis: Jim Arvanitis is a Greek-American martial artist and professional trainer of Mixed Martial Arts/Hybrid Reality Combat based on the pankration model, and author of several books and videos relating to pankration. He is world recognized as the Founder of "Neo-Pankration", a blend of the remnants of the ancient fighting legacy along with elements found in modern sources such as Western boxing, savate, Greco-Roman wrestling, Muay-thai, and combat judo.
Document 2: Avi Nardia: Avi Nardia (Hebrew: אבי נרדיה‎ ‎ ) is a Martial Artist and he is the Founder of KAPAP Israeli Krav Maga, ], a hand to hand combat system that includes elements of Lotar (Lohama Be terror - Anti Terror units style), ], Krav (IDF - Israeli Army Hand to Hand Program), Hagana Atzmit (Self Defense - Defensive Tactic - Israeli Operational Police Academy Hand to Hand program.) His wide martial arts experiences include: holding Black Belts in several Traditional Martial Arts styles with life-long training in many leading martial arts styles and Budo such as Brazilian Jiu-Jitsu instructor with a Black Belt under Machado RCJ, Kendo (6th Dan with Study under Kubo Akira), Iaido (5th Dan) and Jodo (5th Dan) teacher, Kyudo (4th Dan) teacher, Judo (3rd Dan) and Japanese Jiu-Jitsu instructor (7th Dan Most Senior Teacher with Kyoshi rank under Patrick McCarthy), Karate KU and Goju Ryu (Under Leon Pantanowitz, and Tadano Tomiyaki & Patrick McCarthy 6th Dan) Thai Box instructor. Avi also spent 8 years living and studying Martial Arts such as Uchi Deshi (living student) and devoted his life to the study of Martial Arts as his words reflect here - "Always student, sometimes teacher" and has tried to roll his life-experiences and knowledge into Reality Training as his words reflect here - "Better to be a student of reality than a master of Illusion." Adding to his varied study is also sports study: Avi is certified in sport study as an Olympic fencing coach, Athletic trainer and Sport Therapist and Fitness coach and also has different sports certifications including rappelling.
Document 3: William E. Fairbairn: William Ewart Fairbairn ( ; 28 February 1885 – 20 June 1960) was a British Royal Marine and police officer. He developed hand-to-hand combat methods for the Shanghai Police during the interwar period, as well as for the allied special forces during World War II. He created his own fighting system known as Defendu. Notably, this included innovative pistol shooting techniques and the development of the Fairbairn-Sykes Fighting Knife.
Document 4: Shaolin Kempo Karate: Shaolin Kempo Karate (or "SKK") is a martial art style that combines the Five Animals of Shaolin Kung Fu (Shaolinquan), the core competency of Kempo, the hard-hitting linear explosiveness of traditional Karate, as well as the power of Western boxing and the felling and grappling arts of Jujutsu, Chin Na, and Mongolian wrestling. This system was founded and developed by Fredrick J. Villari (a former black belt student of Nick Cerio and William Kwai Sun Chow), who devised a hybrid system which integrated the four ways of fighting: striking, kicking, felling, and grappling to eliminate the inherent weakness of martial arts systems that focus on just one or two of fighting techniques.
Document 5: Hybrid martial arts: Hybrid martial arts, also known as hybrid fighting systems or sometimes eclectic martial arts or freestyle fighting, refer to martial arts or fighting systems that incorporate techniques and theories from several particular martial arts (eclecticism). While numerous martial arts borrow or adapt from other arts and to some extent could be considered hybrids, a "hybrid martial art" emphasizes its disparate origins.
Document 6: Lee Chong-min: Grand Master Chong Min Lee is a native of Seoul, Korea. He began his study of Hapkido in his teenage years and made Hapkido a lifetime pursuit though not a direct student of the late Grandmaster Yong Sool Choi. Grand Master Lee attained the self promoted rank of 9th Degree Black Belt and the title of self promoted Grand Master. Grand Master Lee moved to the United States in June, 1980. He opened the Hapkido Center and formed the World Hapkido Association. Grand Master Lee taught martial arts to the Police Department in Plainfield, New Jersey. The Hapkido Center is located in Warren, New Jersey where Master Lee is still instructing students in Hapkido. He has been instructing students in Hapkido for over 42 years. Grand Master Lee is Master Instructor of the Hapkido Center, President of The World Hapkido Association and is also a member of the Law Enforcement Officers Association New Jersey State.
Document 7: Kara-Ho Kempo: Kara-Ho Kempo (the unity of spirit, mind, soul and body, fist law) is a martial art created in the 1930s by the late William Kwai Sun Chow of Hawaii (July 3, 1914 - September 21, 1987). The system can best be described as a series of rapid strikes (punches and kicks) to the vital areas of an opponent. The system calls for an equal use of both the hands and feet and, also, teaches self-defense techniques against weapons and multiple attackers.
Document 8: Ran Nakash: Ran Nakash (born 1978, Haifa) is an Israeli cruiserweight boxer. He is currently Chief Commander and Head Instructor of the Israel Defense Forces Krav Maga Instructional Division and holds a professional boxing record of 26 wins with 18 by knockout and one loss. He scored his latest victory on January 21, 2012 defeating Derek Bryant by unanimous decision. His only loss to date occurred on April 2, 2011 against WBO Cruiserweight champion Marco Huck. Despite accepting the fight on short notice as a late replacement for Giacobbe Fragomeni, Nakash fought a competitive fight, pressing his opponent throughout the 12-round bout, though Huck was ultimately awarded the victory on points.
Document 9: Imi Lichtenfeld: Emrich "Imi" Lichtenfeld (May 26, 1910 – January 9, 1998) was a Hungarian-born Israeli martial artist who founded the Krav Maga self-defense system. He was also known as Imi Sde-Or, the Hebrew calque of his surname.
Document 10: Hans Imelmann: Leutnant Hans Imelmann IC was a World War I flying ace credited with six aerial victories. As a founding member of one of Germany's original fighter squadrons, he was shot down and killed before he reached his twentieth birthday.
Document 11: Jeet Kune Do: Jeet Kune Do (; ), abbreviated JKD, is a hybrid philosophy of martial arts heavily influenced by the personal philosophy and experiences of martial artist Bruce Lee. Lee, who founded the system on July 9, 1969, referred to it as "non-classical", suggesting that JKD is a form of Chinese Kung Fu, yet without form. Unlike more traditional martial arts, Jeet Kune Do is not fixed or patterned, and is a philosophy with guiding thoughts. It was named for the Wing Chun concept of interception or attacking while one's opponent is about to attack. Jeet Kune Do practitioners believe in minimal movement with maximum effect.
Document 12: Aikido: Aikido (Japanese: 合気道 , Hepburn: aikidō ) ] is a modern Japanese martial art developed by Morihei Ueshiba as a synthesis of his martial studies, philosophy, and religious beliefs. Aikido is often translated as "the way of unifying (with) life energy" or as "the way of harmonious spirit".
Document 13: Mixed martial arts: Mixed martial arts (MMA) is a full-contact combat sport that allows both striking and grappling, both standing and on the ground, using techniques from other combat sports and martial arts. The first documented use of the term "mixed martial arts" was in a review of UFC 1 by television critic Howard Rosenberg in 1993. The term gained popularity when newfullcontact.com, then one of the largest websites covering the sport, hosted and republished the article. The question of who actually coined the term is subject to debate.
Document 14: Israel Military Industries: IMI Systems, formerly Israel Military Industries, also referred to as Ta'as (Hebrew: תע"ש מערכות ,התעשייה הצבאית‎ ‎ ), is an Israeli weapons manufacturer. It manufactures weapons, munitions and military technology mainly for Israeli security forces. (especially Israel's army, the Israel Defense Forces or IDF)
Document 15: Krav Maga: Krav Maga ( ; Hebrew: קְרַב מַגָּע‎ ] , "lit." "contact-combat") is a military self-defense system developed for the Israel Defense Forces (IDF) and Israeli security forces (Shin Bet and Mossad) that consists of a combination of techniques sourced from Boxing, Wrestling, Aikido, Judo, Karate along with realistic fight training. Krav Maga is known for its focus on real-world situations and its extreme efficiency and brutal counter-attacks. It was derived from the street-fighting experience of Hungarian-Israeli martial artist Imi Lichtenfeld, who made use of his training as a boxer and wrestler as a means of defending the Jewish quarter against fascist groups in Bratislava, Czechoslovakia in the mid-to-late 1930s. In the late 1940s, following his migration to Israel, he began to provide lessons on combat training to what was to become the IDF.
ground_truth: Emrich "Imi" Lichtenfeld