Here's what happened when UFC fighters took on Marine Corps martial-arts experts

One of the instructors addressed that in one of the 3 videos on this evolution. He said from their perspective a fight ends one of three ways (1) I win and you die, (2) You win and I die (3) Neither of us wins and we both die. Survival vs. winner of the match, to fight another day.

Not familiar with that but it sounds very accomplished, TKD? I fooled around with Wado in High School for laughs and something to do. Mostly emphasizes on form and kata vice self-defense unless your brown belt or above. All show and no go IMO. Only got a couple of belts and taught lower belts to cover my dues. Then the Sensei gave me keys to dojo and hardly showed up anymore so I moved on. I know enough now to know I don't know anything and would get my clock cleaned in a hurry. Got young daughter and son involved with Kajukenbo for a year or so and enjoyed watching them train. Their Sifu was a USMC Sergeant and although only 3rd black he was very good. We PCS'ed and they lost interest in the shuffle. It was a nice art but not readily available unless you're close to a metro area. I always liked the strict training and style of Kenpo, but it's not on every street corner either. If I were 18 again I'd try to get into Krav Maga because unless you're a high belt in anything else it comes closest to keeping you alive in real-world situations. Basic street-fighting in extremis. Best wishes.

CWO3 (Join to see) - TSD is Tang Soo Do. I have mentors that are Kenpo and Kempo. I can never remember which is which or what the difference is. Okinawa, Hawaii and JJapan all seem to have something to do with it.
A short summary of the history of Tang Soo Do
In its ancient history Tang Soo Do was developed when three kingdoms of Korea were united. Over a period of about a thousand years it developed into a sophisticated art form used by military and civilians. Then later, there were contributions made by occupying Japanese and Koreans in Manchuria, China. After the Japanese were pushed out of Korea at the end of WWII, Hwang Kee formed Soo Bahk Do organization. In the 1950’s the Korean government forced the different martial arts schools to combine into a one organization, which came to be known as Taekwondo. Taekwondo eventually became a sporting organization/style. Traditionalists broke off and started training under the name Tang Soo Do. American military members brought it back to the United states after the Korean Conflict. In the late 1960s Grand master Hwang Kee founded the United States Tang Soo Do Federation.
Basically the style is about moving in and out quickly. WE bounce on the balls of our feet and skip. My calves are still kicking my butt after two years.

MSgt (Join to see) - Gerry, thanks for that. It's very interesting. I was never crazy about watching TKD but it became a craze in the late 70's. The spinning back kicks and high kicks are a real good opportunity for a quick aggressor to mess up your day unless you are lightning fast. I'm not even a novice now and couldn't train if I had to but it just doesn't make sense to turn your back to opponent if you can help it. Kajukenbo has roots in Hawaii also. I really enjoyed watching my grade school aged daughter and son train in it. It's good that you've stuck with it. A hometown friend was able to train in crane style of kung fu while in Navy around Baltimore in mid 70's. He was pretty good and very humble. I lost touch and don't know if he stuck with it. He was in the mid range belts then and said advancement took years. In 1979 I watched a demonstration on Okinawa by then Master (10th Dan Red) of Shorin-Ryu, but don't remember his name - chronology suggests Katsuya Miyahira. I only have a faded polaroid of it. He did some sword stuff of things on a students chest. Krav Maga is one of the best for survival in bad situations and I think various operators base their training around it. Best wishes. Will

CWO3 (Join to see) - We use spinning back kicks. The back to your opponent must be fast and must be used in the right situation.
I don't believe that any style is best for anything. I believe a how well a practitioner can utilize the tools he knows determines what is best. Our school is an AIKIA member. That means we incorporate lessons and techniques from any style. If I were to go to a TSD foundation school, I would have to change the way I do a lot of things.