Vovinam and most developed in Vietnam with more than 60 schools around the world, including Poland, Belgium, Cambodia, Denmark, Germany, the United States, Morocco, Norway, Russia, France, Romania, Switzerland, Sweden, Singapore, Uzbekistan, Thailand, Italy, Australia, India, Iran, Spain, Algeria, Taiwan. The Chief of Vovinam Council now is Nguyễn Văn Chiếu. Vovinam is practiced with and without weapons. It is based on the "principle of between hard and soft". It includes training of the body as well as the mind. It uses force and reaction of the opponent. Vovinam also includes hand, elbow, kicks, escape- and levering techniques. Both attack and defense
Martial Arts Odyssey while delivering his standard greeting: "“Hey, I’m Antonio Graceffo. And this is Martial Arts Odyssey. Today we are in (name of the location). And we are learning (name of martial art). With me today is (name of instructor).”" Every episode includes training sequences, including some involving Antonio sparring with different martial artists. In addition, the show contains interviews with practitioners of the profiled martial art, as well as details of local culture and history in the area where these arts were founded. Antonio describes himself as a martial arts anthropologist. In various episodes Antonio can be heard speaking with his