Krav Maga is a self-defense system developed for the military in Israel. The name in Hebrew can be translated as "contact combat". The root word krav (קרב) means "combat" and maga (מגע) means "contact".  Krav Maga is the official combat system of the Israeli military, but it is also utilized by civilians and law enforcement agencies alike for self-defence.Here is an Infographic with 5 facts about the history of Krav Maga:  

Krav Maga Systems: 5 facts about the History of Krav Maga