is one of the most effective martial arts practiced today. It is effective because it was designed for combat. Jujitsu was used by the samurai as their hand to hand fighting system. An interesting note is that most of today’s military combat systems are based solely or partly on jujitsu or jiujitsu; these include MCMAP, Army Corp, and most Israeli systems. What sets jujitsu apart from other martial arts systems around is the variety of techniques that are included in the art and what they do to an attacker with relative ease.
Is it Jiu jitsu or Jujitsu, yes it’s both, jujitsu is the more common spelling in Japan. Jiu jitsu or jiujitsu is the less common spelling, so they are both the same art. The modern definition of jiujitsu comes from BJJ, whose founders practiced a subset of traditional jujitsu which they spelled jiujitsu. That art then was changed to fit the competitive advantages that they had or preferred in Judo competitions.
Jiu jitsu is the precursor to Japan’s Judo, a sport version of jiu jitsu, and aikido, an art that uses motion and joint manipulation to control and throw an opponent. When combat was not a primary concern, practitioners needed a way to test themselves, and gradually Judo was born. Judo’s focus is on throwing or takedowns and pinning. The combative aspect and dangerous techniques were not allowed in competition, and most techniques that would injure were changed to be less dangerous. Judo has also changed over the last century to make it more entertaining by adding more rules. Aikido is also a subset of traditional Jiujitsu. The schools in some areas of Japan focus on motion joint locks. Eventually, Aikido was born. In jiujitsu, these techniques are known as Aikijitsu. Another interesting point is that there are jujitsu techniques in karate as the founders of modern karate studied jujitsu as well as karate.