Japanese is always better because you maintain your standing position and never give it up. This means that you always are upright and can fight more opponents at the same time or back to back quicker. Also it is a lot deadlier and far more effective.
The word judo originated from Japan meaning self-defense
Judo and Karate are important because of the advantage it gives you in self defense, discipline, and control
Gene LeBell has written: 'The handbook of judo' -- subject(s): Judo, Jiu-jitsu 'Gene LeBell's grappling and self-defense for the young adult' -- subject(s): Self-defense for children, Judo 'The godfather of grappling' 'Pro-wrestling finishing holds' -- subject(s): Wrestling holds 'Gene LeBell's handbook of self-defense' -- subject(s): Self-defense
Dojo Definition: Japanese term referring to the "school" or training hall for training in various arts of self-defense, such as judo or karate-about.com
Any of the three can be effective for self defense. Hapkido and Jujitsu are similar in some respects, and of course Judo was derived from Jujitsu. As a second degree black belt in judo I would say that either of the first two would be better because I believe they both involve learning to block strikes and kicks. A two-time national judo champion and martial arts legend in California felt that free-style wrestling was the most practical because fights usually end up on the ground.
Ruth B. Gardner has written: 'Judo for the gentle woman' -- subject(s): Judo, Self-defense for women
Judo is not a game. Judo is a martial art and an Olympic discipline. So, it is more appropriate to say that Judo is practiced instead of played. Judo is practiced in a dojo. A dojo is the place where Japanese martial arts are practiced.
Jiu Jitsu the Japanese Art of Self-Defense - 1901 I was released on: USA: April 1901
When someone tries to rob you, you're allowed to use the judo. When someone tries to assault you, you tell them to stop. If they try again, you warn them about what you're gonna do if they don't stop. If they try a third time, you use the judo. If you don't know how the art of self defense works, you can watch videos and you can take martial art lessons like judo or karate. But you're only allowed to use it when someone tries to attack you.
It would be Karate
'Khaki' as you romanized it can't be Japanese if the first place. Self-defense would be 自衛 /ji ei/ and also 防衛 /bou ei/.
Like many other nations, "a matter of self defense" or "self preservation."