In his youth he helped his father in circus acrobatics and in teaching Jujitsu. Upon exiting Czechoslovakia en route to Israel he is given an ultimatum to join the British Army where he gains military and additional H2H experience learning Fairbairn concepts.
He then becomes chief of Fighting Fitness and Hand-to-Hand combat in the Israel Defense Force (IDF), which originally consisted of intensive use of a knife training and other H2H close scenarios.
There he develops his system of Genius - Krav Maga! He then decides to keep it as an IDF secret, but also exporting it to the civilian market having a "unique combination."
The original idea was to develop counter techniques against all the martial arts and fighting sports. Therefore ,Boxing, Wrestling, Japanese Jujitsu, Chinese Kung Fu, Aiki-Jujitsu, and Aikido were explored and analyzed. Their techniques were evaluated, and few extracted, modified and adopted for the purpose of training. In fact many experts of Jujitsu, and other Aiki Jujitsu, Kung Fu, etc., are unable to recognize these techniques as they were modified in Pure Krav Maga.
What is the essence of his developed system in the IDF, and how he gave it to the civilian public, yet leaving the original Krav Maga an IDF Secret, which at some point even escaped the IDF?
The essence of the Israel Defense Forces Original Krav Maga developed by Imrich Lichtenfeld was all about which training partner arrive first at his opponent's pressure points with sufficient controlling force!
This ex champion saw through his mixed fighting sports athletics bordering with circus acrobatics, traditional Jujitsu, and Fairbairn revamp of hand-to-hand training to soldiers, finding the essence of desired behavior in hand-to-hand-combat scenarios!
It makes you think that after years of training one learns to attack first when he recognizes trouble not needing to even use natural defenses when caught by surprise. You think about the environment, street, dojo, house, etc..
You take all the principles and you see the whole picture of prioritizing your navigation in reach to opponent's pressure points before they can reach yours. You would expect mechanical breakdown of certain principles for the part they deserved to be broken down, and you expect general statements on a system to be all inclusive.
It makes one wonder if instructors do not know, or instructors do not want to teach the essence of the system (so called the lethal elements of the system), and therefore they are not aware of the concepts of reaction time, and sequential execution. Therefore students find it hard to execute defenses and counter attacks and it all amounts to who enters the hotzone first, punching the other out without even being aware of why he succeeded at one point or failed in others.