Kore Defense Industries LLP

Kore Self Defense is Kore Defense Industries’ physical training center located in Loudoun County, Virginia providing self-defense training built from a Krav Maga Curriculum originally developed by Eyal Yanilov. Building from this foundation, our curriculum is fueled by continuous research in the evolution of conflict and violence in the post-modern world. Unlike other Krav Maga based programs, our goals are not based on a systemic martial arts paradigm. We focus instead on what is relevant to our students now – today.

Krav Maga & Chiron Training

Krav Maga is our “hardware” and reality based self-defense is our “software”. Our Founder works collaboratively with Chiron Training & the International Violence Dynamics Team to keep our principle based self-defense training program relevant, effective, and current. Once certified, our instructors are required to continue their training; keeping their physical and instructional skills current. Like Karate, Brazilian Jiu Jitsu, and other martial arts, students can train and test for ranks designated by patches as a nod to our military history.

Before you step on the mat,
we encourage you to meet our team.

KORE SELF DEFENSE LEADERSHIP

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Steve Fisher
Steve FisherOwner/Head Instructor
Steve Fisher is one of the owners of Kore Defense Industries (KDI) and is the Head Instructor for Kore Self-Defense. He is also a certified instructor through 500 Rising, a Level 1 Instructor with Buck Grant’s Muay Thai University, and a Level 1 Instructor with Krav Maga Global (KMG). His martial art background includes BJJ, Judo, and Muay Thai.
Kevin Bosman
Kevin BosmanOwner/Instructor
Kevin Bosman is one of the owners of Kore Defense Industries (KDI) and is an Instructor for Kore Self-Defense.

Kevin joined Kore in October 2016 while he was attending NOVA Community College to get certified as an EMT. Aside from his years training in Krav Maga, Kevin’s martial arts experience also includes Karate, Boxing, Hapkido, with some exposure to the worlds of BJJ and Muay Thai as well. Kevin was certified as an instructor under our founder Tammy Yard-McCracken in October of 2023. Kevin is also certified as a Level 1 Coach under Master Buck Grant’s Muay Thai University.

In May of 2022, Kevin was certified by the DCJS for armed/unarmed private security and currently works as a Security Officer in Ashburn, VA.

Alyssa Walsh
Alyssa WalshOwner/Instructor
Alyssa Walsh is one of the owners of Kore Defense Industries (KDI) and is an Instructor for Kore Self-Defense.

She has been passionate about the intuitive and hands-on practically of Krav Maga since she first started training. Now has an owner and instructor, she is passionate about empowering her students – especially women, young and old, to gain confidence and claim their space on the planet.

Mikayla Rodarte
Mikayla RodarteLead Instructor
Mikayla began training at Kore at the age of 14. Her dedication and passion quickly became evident as she started assisting in the youth program, eventually extending her skills to the adult program. At the age of 18 she became an adult instructor. With a decade of experience at Kore, Mikayla is now the Lead Instructor at Kore, the Lead Warriors Instructor, and also the head of our Women’s Self-Defense programs.

KORE SELF DEFENSE FOUNDER

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Tammy Yard-MacCracken
Tammy Yard-MacCrackenFounder - Psy.D. LPC - Founder
Dr. Tammy McCracken is the Founder of Kore Self Defense and the Global Solutions Director of Personal Defense Industries (PDI). She is a certified Conflict Communication Instructor and is one of four directors with Rory Miller’s Chiron Training. Her training programs have been sought out by safety and security professionals, members of law enforcement, first responders (EMS), and national security professionals.

INSTRUCTOR CADRE

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Sophie Fisher
Sophie FisherInstructor
Sophie started at Kore in February 2019 when she was in 7th grade. Before coming to Kore, she had struggled with anxiety and other issues, but Kore quickly became “family” for her. She now had a positive outlet to deal with the negative energy she was dealing with.
Amy Maxwell
Amy MaxwellInstructor
Amy Maxwell’s original certification as a Krav Maga instructor was granted by Krav Maga Global. She has continued her education as an instructor with extensive training in other fighting systems and is currently certified by Kore Self-Defense’s Instructor College.

Amy began training at Kore Krav Maga in our first 6 months of operation and has been an integral element in our efforts to increase the number of female instructors here in the area & in the U.S. She utilizes her understanding of goal development and what it takes to accomplish difficult tasks in her work with students on the mat.
John Kelly 'Jack' Quilantang
John Kelly 'Jack' QuilantangAssistant Instructor
Jack joined Kore in April 2023 and became a member of the Instructor Cadre in January 2025 after completing Kore’s year-long Instructor’s College. Before his involvement with Kore’s mission, Jack served as an active-duty U.S. Marine and worked as a security contractor, a role that took him across the globe. His career has included operating and managing security operations in various domains and disciplines.
Andrea Lucente
Andrea LucenteAssistant Instructor
With no prior experience in martial arts or combat sports besides her current training, Andrea decided to join the Instructors College in February 2024 and earned her Assistant Instructor certification at Practitioner Level 4 in December 2024. She dedicated a lot of time on the mat training, learning, practicing, testing, attended the required meetings, and completed her rotations in the kids, striking, and adult self-defense/Krav Maga classes.

Andrea hopes to inspire and empower other women to step out of their comfort zone, own their space and live confidently. Today, you can find her assisting in the women’s only class, Valkyrie; adult self-defense; and leading striking class as she continues with her training to move up in rank and become a full Kore instructor.

John Dashiell
John DashiellAssistant Instructor
John ‘Dash’ Dashiell joined Kore Self Defense & Krav Maga in October 2022 and became a member of the Instructor Cadre in January 2025 after completing Kore’s year-long Instructor’s College. Dash is a true native of Loudoun County; having grown up on a small farm in Lovettsville. He has always had a fascination with Krav Maga, and it was a personal goal to learn it.
Oscar Mosqueda
Oscar MosquedaAssistant Instructor
Oscar arrived at Kore Self Defense & Krav Maga in June 2023 and became a member of the Instructor Cadre in January 2025 after completing Kore’s year-long Instructor’s College. As a Krav Maga Practioner, Oscar has also completed the Level 1 course for 500 Rising, a non-profit organization focused on women’s proactive and responsive self-defense.

HIGH PERFORMANCE SELF DEFENSE TRAINING

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Kore Self Defense Women Training
Kore Self Defense and Krav Maga
Kore Self Defense and Krav Maga
Kore Self Defense and Krav Maga
Kore Self Defense and Krav Maga
Kore Self Defense and Krav Maga
Kore Self Defense Krav Maga Training
Kore Self Defense Krav Maga Training
Kore Self Defense Krav Maga Women Training

Achieve Your Goals

Flexible membership packages to suit all levels of training to help achieve your self defense goals