I've used blades in the military and as a civilian in Africa for many years. Since coming to this country I've not needed to use them as hard or treat them as badly as I did in Africa, but a good blade still forms part of my everyday carry gear. One that I learned to respect was the US Marine Corps fighting knife known universally as the Ka-Bar. I saw my first one in 1976, in the South African armed forces, in the hands of a former US Marine who'd come to that country after serving in Vietnam because he couldn't settle down in what he called the 'peacenik' USA, and wanted to go on 'killing Commies'. (He had plenty of opportunities open to him.)
I was intrigued to come across this promotional video for the company, describing its origins and its most famous product. Yes, it's basically an advertisement for them, but their blades are iconic to American fighting men, so I don't mind giving them a bit of free blog airtime.
I'm glad to see they're keeping the old traditions alive. The USMC somehow wouldn't be the same without the Ka-Bar fighting knife. (Yes, I own one myself. Why do you ask?)