Move this question from a different thread. What is jeet kune do concepts training? I'm relocating for work to the Concord NC school and saw various schools offering jkd. This one.. Maforu.com offers jun fan gung fu/Kali and jkd concepts. Just curious as to what jkd concepts is...on the site it says you go through 3 different phases. Kickboxing, ground grappling, trapping.