Jews are good at getting things done. When you hire a Jewish attorney or Jewish accountant or Jewish doctor, you usually get a better outcome than when you go with goyisha equivalents. Why? Because Jews aren’t sentimental when it comes to practical matters. They don’t worry about style points. They get things done by doing what needs doing. Goyim often find these methods “unsporting.”
Krav Maga is the same way. According to Wikipedia:
Krav Maga is known for its focus on real-world situations and its extreme efficiency[5][6] and brutal counter-attacks.[7] It was derived from the street-fighting experience of 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.[8] In the late 1940s, following his migration to Israel, he began to provide lessons on combat training to what was to become the IDF.
From the outset, the original concept of Krav Maga was to take the most simple and practical techniques of other fighting styles (originally European boxing, wrestling and street fighting) and to make them rapidly teachable to military conscripts…
Some Krav Maga organizations do not support a competition component, taking the stance that Krav Maga is not a sport. So-called “fighting” sports tend to operate under principles of using safe techniques, doing minimal harm, and consequently wearing down opponents and using other tactics supported by the “rules” of safe competition. In its role as self-defence and as a hand-to-hand combat system, Krav Maga operates under a completely different set of principles in which techniques may indeed cause significant damage and fights are to be ended as quickly as possible when the conflict cannot be avoided…