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Krav Maga Blog Articles

Krav Maga Yashir Boston Head Instructor: Gershon Ben Keren

Krav Maga Yashir Boston's Head Instructor, Gershon Ben Keren, started writing his weekly Krav Maga blog in 2012. The blog looks at Krav Maga and how it relates to real-life violence. Gershon blends his academic knowledge of criminology, his own real-world experiences, working in the security industry, as well as his training in Krav Maga that started in 1993. Below are a few of his latest articles.



Like with most academic disciplines, criminology has unattributable statements that are often referenced. Often, they involve a paraphrased maxim that circulates withing the discipline rather than a line that is traceable to one individual. One that circulates within criminology is, “without a motive there can’t be a crime.” However, within the criminal justice system and criminology, motive is not a required element of most crimes, whereas intent (mens rea) is. Whilst intent and motive often ov...(Click Here To Read The Article)



The Council on Criminal Justice’s Mid-Year 2025 analysis (42 consistently reporting U.S. cities) found that 11 of 13 types of offenses decreased year over year. Highlights: homicide −17% (327 fewer deaths), gun assault −21%, robbery −20%, carjacking −24%, residential burglary −19%, nonresidential burglary −18%, larceny −12%. There were two exceptions: domestic violence  went up by 3% and drug offenses remained largely unchanged. However, compared with the same period in 2024, the first 6 months ...(Click Here To Read The Article)



About a year ago I watched an interview with an ex-Metropolitan (London, UK) police officer who made the claim that a large number of released child sex offenders, lived on boats/barges in order to evade having to sign the UK’s sex offender registry (a claim that a UK tabloid newspaper picked up on but does not appear to have been reported by any other news agencies) e.g., sex-offenders have 28 days – from time of release – to register. However, if they move to another jurisdiction, within those...(Click Here To Read The Article)



I’ve had the misfortune to have to deal with people on PCP (phencyclidine), sometimes referred to as “Angel Dust” a number of times, and on each occasion it wasn’t pretty. Fortunately, I was always part of a team and had assistance; I’m not sure what the outcome would have been otherwise. On one occasion I saw someone who weighed about the same as a photocopy of themselves get the better of two semi-professional boxers who both went on to win commonwealth titles. There may be some reading this a...(Click Here To Read The Article)



There’s a certain “school of thought” that says you should only train how you should/would fight in a real-life situation. I would argue that there are times you should do this – within safety parameters (or what’s the point of “training” you might as well just wait for a real-life attack as that’s what you would be experiencing etc.) – but not all the time. To take the idea to the extreme, I didn’t wear my Judogi when I ran or lifted weights which were all part of my training regime when I was ...(Click Here To Read The Article)



N.B. Just after finishing this article, which contained a generally optimistic message concerning English football hooliganism at the upcoming world cup, I went to check the status of the “Old Firm Clash” between Glasgow Rangers and Glasgow Celtic concerning a Scottish Cup Semi-final fixture (8th March 2026) at Ibrox, to see that it ended with a pitch invasion by both sets of fans, with an “appearance” by the Ranger’s Ultras. Whilst it was a brief confrontation between both sets of fans, and not...(Click Here To Read The Article)