Krav Maga is a noncompetitive self-defense system developed in Israel that involves boxing, jiu-jitsu, karate, and grappling techniques, along with realistic fight training. Krav Maga is known for its focus on real-world situations and extremely efficient, brutal counter-attacks.
Kapap and Krav Maga are generic terms that describe in Israel fight face to face. None of these systems were created by one man or one organization. Essentially, both fighting systems are identical.
There are no "original" or "traditional" techniques. The modern Krav Maga is tottaly different from what teach Imi Lichtenfeld and is quite normal to be like this. The conditions of fighting is changed so Krav Maga is changed.
Although they are of Israeli origin, today, Krav Maga and Kapap has become an international combat systems that reflects a modern philosophy of fighting and constantly adapts the trainings to the needs of the modern world. If somebody say that he teach traditional techniques of Krav Maga for the modern fight is the same as you say that you are going now in the war with weapons from 1947.
In the world, there are many organization that promote Krav Maga and a lot of instructors. Every organization have their own grade system and training programs. No one is more legitimate then other. What is important is what every instructor teach and the quality of informations.
Krav Maga promotes finishing a fight as quickly as possible and this is a very important principle that must kept in all trainings. Attacks are aimed at the most vulnerable parts of the body, and training is not limited to techniques that avoid severe injury. Drills provide maximum safety to students by the use of protective equipment and the use of reasonable force.
Students learn to defend against all variety of attacks and are taught to counter in the quickest and most efficient way.
Training can also cover situational awareness to develop an understanding of one's surroundings, learning to understand the psychology of a street confrontation, and identifying potential threats before an attack occurs. It may also cover ways to deal with physical and verbal methods to avoid violence whenever possible.