Sambo- Big focus on Striking (combat Sambo) JJ- Striking not focused on Sambo- Very heavy focus on Throws/trips JJ- Very limited Throws/trips Sambo- Big focus on Joint locks (mainly leg locks) JJ- Huge focus on joint locks (even small joint manipulation not allowed in MMA) Sambo- Medium focus on chokes JJ- Major focus on chokes Sambo- Major wrestling involved JJ- Minor wrestling, more focus on positioning Sambo- No heavy use of kicks JJ- No heavy use of kicks (not including up kicks and thrust kicks) Sambo- in russian means "self defence without weapons" JJ- Known as the "gentle art". Sambo- Violent and brutal JJ- Smooth and precise Hope this helps. Both arts in the right hands are awesome:good