Christian Klaver has been a close friend of mine for many years, and he's one of those guys it's impossible not to like. He's friendly and gregarious and always has something interesting to say. He's also a terrific writer (you can find some of his work here) and a formidable martial artist.
I sent him a message asking about katanas and samurai swords: "Hey, you know how in Walking Dead, Michonne is always chopping zombie's heads off with one swipe of her katana? Is that actually possible in real life? It seems like cutting someone's head clean off would be harder than that. I need answers!!"
His answer was so fantastic I had to share it here on the blog. Hope you get as much out of it as I did. Thanks, Christian!
"I can help. Mostly, yes. I totally think it would work, but not quite they portray it. And not indefinitely. A sword would certainly do damage to a person’s neck, though a decap would be unlikely. The proper stroke for a katana includes a pulling motion so the sword slides to cut. Think about the slide you have to do cutting food. (They always show it like she’s hitting with a bat, just straight through, which wouldn’t work on a person. On a super sharp sword, maybe once, maybe, before you dulled the crap out of your sword. Also probably not right through the skull like they often show. It would, sooner rather than later, just chunk into the flesh and bone like an axe into wood, and stick. (Especially if you don’t slide!) You almost never see that in the show. That goes double when you see her whipping it around with one hand. It’s meant to be used with two, hands spaced as far apart as you can for leverage. Now if zombies are decayed and gooier than people, that might allow a lot more latitude.
I was part way through this post and did a little research. You can find a ton of sites with people putting swords through bottles of water and occasionally a hunk of beef. It would do lethal damage to a person no problem. So certainly a zombie. Hell, even a non-sharp sword would do the trick if you had all the time in the world and weren’t worried about getting stuck. It’s when you want to do it repeatedly, with no hang-ups, then it gets unbelievable. Also, most of the time, these are made out of not great metal. So after a few dozen zombies, I’d think you'd break it sooner or later. (We just found out the Michonne found hers, which makes this even more likely.)
There’s a site with a real Samurai Master declaring “there are only a handful of people on the planet who could effectively use a katana in battle. For the rest of us it would be nothing more than a recipe for certain death.” I get where he’s coming from, but I think he’s overstating the case. He’s thinking of combat against an armed opponent that knows what he’s doing, where you’d be hitting metal (sword on sword, armor, etc). Zombie fighting is kind of the cake walk of combat, it’s only in attrition that they’re dangerous, right? Any length of metal will do the trick, Kouno, I’m pretty sure a katana could dispatch a zombie ok, buddy.
If I had to pick for me, tomorrow, for under $100, my top choice would be the Kukri. (I like this one with the lanyard so you can lose it as easily.) Small enough you could get a good metal one. Or a good old machete.
If I had to pick out of my basement, I would certainly use my katana (with backup machete). And, you know, a fucking rifle and pistol. Sure, the katana won’t last forever, but it’ll last until I find something better.
Honorable mention to this tactical tomahawk, which wouldn’t ever break, I think, unlike the less-than stellar metal of the $30 Chinese Broadsword above
Practical, but not anywhere near as sexy as a sword.
That being said, I’ve never actually had a problem with Michonne’s swordwork in walking dead while I’m watching her. It’s a little bit of a stretch because she does it one-handed and she’s kind of skinny, but so cool that I’m willing to go with it."
My friends are awesome, right?