Haganah & the Birth of an Israeli Combat System
When Imi reached Palestine in 1942, the Jewish paramilitary needed hand-to-hand training that conscripts could learn in weeks, not years. He delivered it.
The Haganah was the largest of the pre-state Jewish paramilitary organizations in Mandatory Palestine. By 1942 it was preparing for both anti-British operations and the larger conflict everyone could see coming.
The training problem
Haganah commanders faced an unusual constraint: their fighters came in waves, trained for weeks rather than years, and had to function against larger, better-equipped Arab and British forces. They needed close-quarters combat that:
- Could be taught in a few weeks of part-time instruction
- Worked against rifles, knives, and clubs
- Retained under exhaustion and stress
- Could be retained by recruits with no martial-arts background
Imi's contribution
Imi was recruited by senior officers including Yitzhak Sadeh, who founded the Palmach commando units. Imi taught swimming, physical fitness, wrestling, and the close-combat material that would become Krav Maga. The early curriculum drew from his boxing and wrestling background, blended with the brutally practical lessons of Bratislava.
State formation
When Israel was declared in May 1948 the Haganah dissolved into the IDF. Imi was appointed Chief Instructor for Physical Fitness and Krav Maga at what would become the IDF School of Combat Fitness — the position from which Krav Maga was formalized into a national system.