Stop Freezing When a Weapon Is On You!
Learn the unarmed defense system that teaches you to take a knife, gun, or club away from an attacker.
Unlock the Free GuideThe techniques that made a million people stop scrolling.
Viewers already treat these breakdowns as practical, credible, and worth practicing.
Love this stuff keep showing these little defensive moves over and over.
Most of the time I think videos like this are bullshit but I believe this guy could actually do this without getting killed.
Spent over forty years in martial arts and combatives, and I must say these are the best weapons defense vids on the internet. Salute and thanks for the knowledge.
You look so natural true to life as if you were born marcial arts fighter.
Awesome stuff, teaching and practicing with family... tough times ahead potentially.
Very informative and nicely displayed, thank you W.D.A.
Phenomenal video and teacher, this instructor relaxly clothed as a normal citizen explains the correct principle and strategy better than these traditional GI cladded wannabes that many times miss the point.
He takes time to explain what is the principle that makes the technique work and the general strategy. No foreign languages, no meaningless mysticism, no crazy salutes, no crazy clothing just pure knowledge.
It kind of reminds me of when a Tech genius billionaire called Steve Jobs showed up with a black T-shirt and jeans expertly explaining a masterpiece of creative technology, very relaxed, very casual, no fluff.
This Gentleman understand the concept or the principles. It's not just for train a bunch of random techniques; going deep inside the reason why we do things the way we do.
This type of knife defense if so important. And It's so easy once you practice the right technique.
Being a correctional officer for 25 years; True a good knife fighter won't attack you like that. However when you're in that position this technique work great. I use this particular technique all the time. Works every time. GREAT TECHNIQUE GUYS!!!!!!
Hello my friends, since I found you here on YT I have read the comments of some people, they are saying that your technike don't work but honestly don't care.
I'm a fighter, I am with fighter every day and we are having a lot of fun testing your way to do things. Like I said in another occasion: It works, purely! So thank you for sharing with us.
So awesome! I never considered taking a weapon class like this but will soon.
That was awesome and this method bears the ring of truth, in my experience.
I'm a musician by training among other things. Enjoyed seeing you get close to full speed here. But I see where your actions are tied to an internal Rhythm and I'm the beat that you decide to hit the drum you hit the drum and the gun is in your hand.
Bro this old man is str8 killer I love it teach me the ways your a OH.
I have seen a few videos these last few days and I am quite impressed. You take your time to explain the principle instead of showing random techniques, I come from the world that the principle is the main thing, the technique is an illustration of the principle.
Can you do a brief video on your background it seems quite solid, well learned. I see other instructors attacking techniques from other systems but they do not show them correctly that only shows that they do not understand the principle behind the technique.
Another great video. Thank you for breaking this down. Practice, practice, practice.
Keep it up. I like the pinky move. Not sure how secure I am with the right hand grab. I honestly don't know how loose a man's fists are when surprised. Either way... impressive techniques that I have never seen before, and that is rare.
As a Hapkido practitioner, I appreciate this and would like to see more of these detailed videos. Thank you.
Good stuff - keep'em coming!
Excellent techniques...I love it...
These posts and self defense techniques are enormously helpful and empowering. Please keep posting!
Great training video. It's so painful. Be careful with your partner. Don't break their wrist's.
So so so real! Not like all of these outerspace super commandos showing bullshit that will get you deleted! Thanks for this keep up the awesome work!
I really have to laugh-not at the video or the techniques being shown, but at the comments, most of which are from people who have zero training.
A lot of people have a bunch to criticize about these techniques but I'd like to hear what they have to say when their joints are being manipulated and their wishing their toes were just a bit longer to try and alleviate the pain.
Very detailed. Thank you. Greetings from Hurth near Cologne, Germany.
Outstanding.
I'm practising navaja Style Fight since the early 80's and have still the opinion that you better don't fight a person with a knife even if you have also one. If you can better leave but sometimes you can not leave the situation so you have to fight against a knife.
I'm thankful and proud we have someone like you, teaching us great methods to protect us from mayor injuries, so thank you. I'm a big follower.
This is great. You'll get the comments saying this never happens in a real fight' etc. But if you look at real footage of situations, this is Exactly the sort of thing that happens, being threatened with a blade at odd angles. Love it.
This guy I love him. He's one of the real gems. Thanks for being so darn candid! It so much fake stuff on the tube and every where. How can I become a student?
Excellent and thank you from the U.K where knife crimes are predominant. I will practice with my 27 years and older sons using ONLY A SAFE NON HARMFUL stage knife. Cheers guys.
Putting physics back into weapons defense
Not sparring. Not theory. One continuous, four-step response built for the moment the weapon is already there.
You only get one bite of the apple!
Beat the freeze — a trained, instant response to the weapon before his brain catches up.
85% of the disarm IS the distraction. It will give you all the time you need. Overload his attention so he never sees the counter coming.
Redirect and dominate the weapon-holding arm so it can never track back to you.
Because we're using fulcrums, leverage and structure to strip the weapon — strength is not necessary. It will look as if he is giving you the weapon. Clean, controlled, final.
The four private lessons inside the guide
Each position is broken down on video, with the exact step-by-step disarm — all four are yours free inside the guide.
The first step into Vince's weapons defense system
- Plain-English breakdown of all four knife scenarios
- The React · Distract · Control · Disarm formula applied to each
- Instructional disarm videos for every position
- It's Like A Magic Trick — Once You Know How To Do It, It's Stupid Easy!!
- Turn The Attacker Into the Defender In Microseconds!!
There is no catch — enter your email and we'll send your access link instantly.

Frequently asked questions
Everything you need to know before you grab the free guide.
Do I need any martial arts experience to learn this?
It doesn't matter — and that's not a sales line, it's just how this works. What Vince has spent 26+ years developing is unarmed defense against attackers who already have a weapon: a knife, a gun, a club. There is no other system in the world that focuses exclusively on that moment. Most martial arts systems — and most military and law enforcement programs — spend very little time on unarmed defense against a weapon, because their operators carry their own weapons and work in teams. A SEAL with six teammates and four guns rarely finds himself alone against a knife. So even elite professionals have a gap here, and they know it. If you're a Navy SEAL, Delta Force, Force Recon, or SWAT — or a martial artist with 20, 30, 40 years of experience — this is a direct add-on to what you already know. Vince isn't asking you to abandon your system. He's filling the one hole almost every system leaves open. If you have zero training at all, that's fine too — actually, sometimes easier. We start you at the top: weapon defense first. Once you understand how to take a weapon away using leverage, distraction, and body mechanics, everything else falls into place below it. Think of it as starting at a 6th-degree black belt and working your way down. Whoever you are — seasoned professional or complete beginner — if you want to be able to protect yourself or your family when a weapon is already in the room, this is the training that covers exactly that.
I'm not big or strong. Will this actually work for me?
Size and strength matter when nobody's trained. The bigger guy wins that coin flip — until training enters the picture. Navy SEALs aren't big guys. A 60-pound trained Malinois will eat a 300-pound man alive. A little girl can grab a big man's finger, put a fulcrum on it, and drop him to his knees — because the bigger you are, the longer the lever. That's not a metaphor, that's physics. Think about a 300-pound refrigerator. You can't pick it up — but you can tip it to its balance point and hold it there with one finger. Find that point, and weight becomes irrelevant. That's exactly what this system teaches: where to strike, what to grab, how to take someone off balance and put their weapon hand in a position it can't recover from. Fast, non-telegraphic, distraction-first — and then the disarm. Strength is the last thing you need when you understand the fulcrum.
What exactly do I get in the free guide?
The guide gives you a real introduction to the system — not a teaser clip that flashes a technique and leaves you wondering how it actually works. You get the four most common weapon attack positions, the four-step React · Distract · Control · Disarm formula applied to each one, and a short breakdown video for every scenario that walks you through the why, not just the what. Think of it as your first private lesson: you'll understand the principles well enough to start practicing. What you get in the full courses goes much deeper — more positions, more detail, and at the higher levels, live coaching on Zoom and in person — but the free guide gives you enough to know this is real, this makes sense, and this is something you can actually do.
Is the guide really free? What's the catch?
It's genuinely free. Enter your email and you get instant access — no charge, no obligation. Once you have the videos, you can practice them as many times as you want. All you need is a partner. It doesn't have to be a trained martial artist — it can be your mom, your dad, your brother, your son, your best friend. But here's the rule: the person you're working with controls the pain, not you. Start extremely slow. The Filipino martial artists have a saying: slow is smooth, and smooth is fast. Get the motion right first. One of Vince's students — a man in his 50s — practiced with his 75-year-old mother. He described touching her hand like touching a butterfly wing: so softly that the wing would never be damaged. He got better and better every session. That's the idea. If you try to go too fast or too hard too soon, your partner will never train with you again — and they'll be right. Get the position correct, and you'll be surprised how little movement it actually takes. Watch Vince's hands in the videos. The motion that puts someone in serious pain is sometimes less than a quarter of an inch. The technique does the work. You just have to learn it.
How is this different from a regular self-defense or karate class?
It doesn't compete with any other system — it adds to them. Taekwondo, boxing, Muay Thai, Krav Maga, military combatives — all of it is great. Navy SEALs can do things most people can't imagine: take out a city's power grid, place explosives underwater, shoot a target at a thousand yards. Every discipline builds incredible skills. The difference is this: almost none of them spend serious time on unarmed defense against a weapon that's within arm's reach or on your skin. Almost every fighting system saves that for upper ranks or black belt level. Think of it like being the best cardiothoracic surgeon in the world. You've spent a career operating on hearts. Then your daughter's boyfriend says his eye hurts, and you shrug — because that's not what you do. Mike Tyson might be the greatest boxer who ever lived, but when someone puts a gun to his head, boxing doesn't help. That's the gap. Vince has spent 25+ years filling that one gap — and only that gap. He doesn't teach calisthenics, conditioning, or how to win a fight. He teaches one specialized thing: how to take away a weapon from someone who's already got it on you. No fluff, no filler — just the technique. And technique, once you know it, is like a magic trick. Once you see how it works, it becomes simple.
Who is Vince Waterhouse?
Vince Waterhouse is the world's leading authority on unarmed defense against armed attackers. He holds a 10th-degree black belt and has more than fifty years of martial arts experience — the last twenty-five of them spent developing and refining a single specialty: how to disarm an attacker when the weapon is already within arm's reach or on your skin. His path started in 1974 with karate, and took him to Shanghai from 1979 to 1981, where he trained under Master Xu Guo Ming — becoming the first Caucasian student permitted to train at the legendary Jing Wu Athletic Association after World War II. In the decades since, he earned black belts across multiple systems, including a 9th-degree in Castoldi Ju Jitsu, authored The Warrior Short Cut, and developed the physics-based, distraction-first disarm method he teaches today. He founded the Weapons Defense Academy in 1999, was named Grand Master of the Year by the American Sports Jujitsu League in 2019, inducted into the Jujitsu America Black Belt Hall of Fame that same year, and recognized as Self-Defense Instructor of the Year in 2018. Today his videos reach a combined audience of over a million followers across TikTok, Instagram, YouTube, and Facebook. He still trains and teaches two to four hours a day — every day. He is also an admitted attorney in both Florida and New York, and is based in Bonita Springs, Florida.
Does this cover more than just knives?
The free guide is your introduction — four of the most common knife threats, all from a standing position. That's where everyone starts: static, controlled, so you can learn the motion without chaos. But the full curriculum goes much further than that. Level 1 alone covers four complete courses with ten videos each, taking you through knife across the throat, knife to the side of the neck, knife to the stomach, and knife pointed at the throat — each with multiple disarm variations, body mechanics drills, and empty-hand applications. By Level 2, you're adding body movement, dealing with a club, and learning how to handle a threat that's moving. Level 3 and 4 bring in knife from the back, knife from the front, slashing attacks, gun threats to the head and stomach, and combinations of weapons and grabs you've never rehearsed anywhere else. The curriculum eventually covers hundreds of variations across knives, guns, and clubs — standing, moving, one attacker, multiple attackers, close range, back against the wall. The same four-step system runs through all of it. Once you understand the principle, every new threat is just another application of the same motion. The free guide is the door. What's behind it goes as deep as you want to go.
How long does it take to get through the free guide?
You can read through it quickly — but that's not really the right question. The guide includes four short breakdown videos, one for each knife threat position. Each one is about a minute long. They give you a real look at the technique — not just what it is, but how it works. In the full courses, that same technique gets a 7 to 8 minute video with everything unpacked: the setup, the motion, the details. The free guide is the condensed version, enough to understand what you're looking at and start practicing. How long it takes to get through the guide depends entirely on what you want out of it. You can read it and watch the videos in one sitting. Or you can spend a month on it — drilling the same motion over and over until it's smooth, then faster, then automatic. It's like asking how long it takes to become a concert pianist. It depends. One lesson a week and thirty minutes of daily practice makes you one kind of pianist. Four or five hours a day because you love it makes you another. This is the same. If you come in at the full curriculum level — five classes a week, regular access to Vince, working the material every day — after one year you will be more capable than anyone you know — guaranteed. But it all starts here, with the free guide, and what it shows you is possibility. Once you see how this works — once you feel that first technique click — you'll understand exactly where you want to go from there. And wherever that is, start slowly. Start softly. The motion comes first.
What happens after I get the free guide?
That's entirely up to you. You can read it, study it, watch the videos, practice it with a friend, and get a real feel for what this is. What you'll notice immediately is that you're seeing techniques nobody else is teaching. Others may fight, wrestle, or train combatives — but almost none of them will give you a systematic way to disarm a weapon in that first critical second. If what you see makes sense and you want to go further, the next step is the Specialist Track video curriculum — structured courses that go deeper into every position and build your skills progressively. If you want to move faster, the Elite level puts you inside a training team with intensive access to Vince, live sessions, and a clear path through the full curriculum. Here's what Vince can tell you from 25+ years of teaching this: if you go through the full curriculum, revisit it regularly, and attend at least two classes a week for a year, you will know more about unarmed weapons defense than almost anyone you will ever meet — except his other students and a handful of peers. Most of what you see online — YouTube, TikTok, Instagram — shows impressive-looking techniques, but they're often incomplete. Creators who cover ten different subjects can't go deep on any one of them. This program covers one thing exclusively: unarmed weapons defense against attackers who have weapons. That focus is what makes the difference. Not a brag. Just the truth.
Where is the Academy located, and can I train in person?
The Weapons Defense Academy is in Bonita Springs, Florida, and offers in-person group and private classes for Elite members. Everyone else trains through the online video curriculum and live weekly Zoom classes from anywhere in the world.
Meet Your Instructors
Four chief instructors. A combined 200+ years of martial arts experience. All focused on one thing.

Chief Instructor & Founder
Vincent Waterhouse
A 10th-degree black belt with over 25 years focused specifically on defending against armed attackers. He trained in Shanghai, founded the Weapons Defense Academy, and was named Grand Master of the Year — and he's taught these exact disarms to an audience of over 1,000,000.
His method strips self-defense down to what actually works under the worst-case pressure of a knife, gun, or club — no decade of martial arts required.
- 10th-Degree Black Belt
- 50+ Years Martial Arts Experience
- Grand Master of the Year
- Jujitsu America Black Belt Hall of Fame

Chief Instructor & Founder
Vincent Waterhouse
A 10th-degree black belt with over 25 years focused specifically on defending against armed attackers. He trained in Shanghai, founded the Weapons Defense Academy, and was named Grand Master of the Year — and he's taught these exact disarms to an audience of over 1,000,000.
His method strips self-defense down to what actually works under the worst-case pressure of a knife, gun, or club — no decade of martial arts required.
- 10th-Degree Black Belt
- 50+ Years Martial Arts Experience
- Grand Master of the Year
- Jujitsu America Black Belt Hall of Fame

Chief Instructor & Co-Founder
Prof. Dave Castoldi
Co-founder of the Weapons Defense Academy and one of the most decorated jujitsu masters alive. Prof. Castoldi spent 60+ years developing a system of street self-defense by adding weapons defense to Wally Jay's Small Circle Jujitsu — and his fingerprints are on every technique we teach.
When Prof. Castoldi demonstrates a disarm, the biggest men in the room become believers in about three seconds.
- 10th Degree Black Belt — Castoldi's Jujitsu
- 9th Degree Black Belt — Jujitsu America
- 8th Degree Black Belt — Small Circle Jujitsu
- 60+ Years Martial Arts Experience

Chief Instructor & Co-Founder
Prof. Bob Stines
Soke (founder) of Sanshin-Ryu Jujitsu — a curriculum now recognized in 67 countries — and a former world champion competitor with a professional record of 35-5-1 with 17 knockouts. Prof. Stines brings a rare combination: academic martial arts depth and real competitive fire.
He fought in Chuck Norris' World Combat League and still teaches with that same intensity.
- 10th Dan — Sanshin-Ryu Jujitsu (Founder / Soke)
- President, American Sports Jujitsu League
- 1991 WSKF World Karate Champion
- Pro Record 35-5-1, 17 KOs

Chief Instructor & Co-Founder
Prof. Saul "Randy" DeArcia
If you ever doubted that size doesn't matter — one round with Randy will end that debate. At 5'6" and 150 lbs, he is the living proof of every principle this system is built on. He is also the engine behind the Academy's weapons library: constantly finding, testing, and memorializing new defenses.
He will kick ass on the biggest guys out there and teach you how to do the same thing.
- 8th Degree Black Belt — Castoldi's Jujitsu
- Co-Founder, Weapons Defense Academy
- 25+ Years Martial Arts Experience
- Living proof that technique beats size every time
Unlock the free guide
Enter your email and we'll send your free guide instantly.
