Judo is a martial art based on self defence. It is a refinement based on Japaneese ancient martial art Jujutsu.
Jodo is also a fun sport and has very strict rules and regulations like other games. It is also played in Summer Olympics.
Judo relies on effective use of physical balance, efficiency, flexibility, technique etc. rather than sheer strength. Its practice is based more on gentleness rather than using force.
USA Judo is the governing body for Judo in the United States along with member organizations USJA and USJF. Click here to visit its homepage for tournaments, coming events, results, Olympic info, membership and other official information.
Here is a list of Judo related links on the web.