"Gershon is an excellent instructor. He teaches reality-based scenario techniques that are far more productive outside the studio than many martial arts available today. Gershon's expertise will also get you into the proper mindset for effective self defense. I have practiced various martial arts and I'm a former marine, but no one has prepared me better for personal security on the street than Gershon. Every class I attend I learn something new. He teaches aggressive, hardcore, comprehensive skills that give you the confidence you need to handle yourself if you're ever in danger. His credibility and knowledge of personal security have taught viewers of local newscasts to become more self-aware."--Jarrod Holbrook, Television News correspondent

Gershon Ben Keren has been training in Krav Maga since 1994 in both Israel and Europe. He holds a 3rd Degree Black Belt in Krav Maga in Israel, where he also received his teaching certification. He has been trained by some of the IDF's (Israeli Defense Forces) most experienced and respected Krav Maga instructors. In December 2011, he was inducted into the "Museum of Israeli Martial Arts" at the Israeli Martial Arts Center in Herzilya. He has taught Krav Maga to civilians, security personnel, law enforcement agencies, and to members of elite military units and Special Forces. He also holds a 2nd Degree Black Belt in Judo and has won regional and national titles in Judo tournaments. He has a Master's Degree in Psychology, with particular reference to violence and aggressive behavior, and incorporates this knowledge into the reality based self-defense training that he provides. He lives and teaches Krav Maga in Boston, running Krav Maga Yashir Boston.