Always wondered what the differences were.

Thanks for posting, this is very good. As a long-time aikidoka, though, I should note that one of the most important goals of aikido is dealing with multiple opponents. The black belt tests involve defending against two black belts at once (called randori ) for 1st degree. three for 2nd degree, and so on.

— and found it quite effective as well as thoughtful.

Thanks for your always-interesting posts!

I was happy to see a concise description of the other martial arts. They did leave out Krav Maga though.