Crab” refers to the unofficial nickname for the explosive ordnance disposal badge, which has a distinctive shape.

Two other versions of the badge will be awarded to medics and soldiers in all other military occupational specialties who have earned both a combat and expert badge in their respective fields.

The Expert Field Medical Badge may be awarded to all enlisted personnel who have a military occupational specialty (MOS) in the Career Management Field (CMF) 68, MOS18D, or AMEDD area of ...

The Master Combat Badge shows that the soldier wearing the new device has had both a combat award and achieved expert qualification in their military occupational specialty, Sergeant Major of the ...

The Expert Action Badge would be generally for the remainder of the military occupational skills that don't have a formal way of certifying competencies like the EIB and EFMB, Davenport said.