History of Krav Maga
Krav Maga /krɑːv məˈɡɑː/ (Hebrew for “contact combat”) is a self-defence system developed for the military in Israel that consists of a wide combination of techniques sourced from Boxing, Combat Sambo, Muay Thai, Wing Chun, Judo, Jujutsu, Wrestling, Aikido and Grappling, along with realistic fight training. Krav Maga is known for its focus on real-world situations and extremely efficient and brutal counter-attacks. It was derived from street-fighting skills developed by Hungarian-Israeli martial artist Imi Lichtenfeld, who made use of his training as a boxer and wrestler as a means of defending the Jewish quarter against fascist groups in Bratislava, Czechoslovakia  in the mid-to-late 1930s. In the late 1940s, following his immigration to Israel, he began to provide lessons on combat training to what was to become the IDF, who went on to develop the system that became known as Krav Maga. It has since been refined for civilian, police and military applications.
Krav Maga encourages students to avoid confrontation. If this is impossible or unsafe, it promotes finishing a fight as quickly as possible. Attacks are aimed at the most vulnerable parts of the body, and training is not limited to techniques that avoid severe injury; some even permanently injure or cause death to the opponent. 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.
Ideas in Krav Maga include:
Counter attacking as soon as possible (or attacking pre-emptively).
Targeting attacks to the body’s most vulnerable points, such as: the eyes, neck or throat, face, solar plexus, groin, ribs, knee, foot, fingers, etc.
Maximum effectiveness and efficiency in order to neutralize the opponent as quickly as possible.
Maintaining awareness of surroundings while dealing with the threat in order to look for escape routes, further attackers, objects that could be used to defend or help attack, and so on.
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.