The "crab", as it is commonly known, is the only joint service badge and can only be earned upon successful completion of the 38 week course at the Naval School of Explosive Ordnance Disposal located at Eglin Air Force Base, Florida.
Ordnance Survey | Royal Army Ordnance Corps | ordnance | Improvised explosive device | Master-General of the Ordnance | Royal Ordnance Factory | Ordnance Corps (United States Army) | Lieutenant-General of the Ordnance | improvised explosive device | Wound Badge | Parachutist Badge | Parachutist Badge (United States) | Pakistan Ordnance Factories | Naval Ordnance Laboratory | Unexploded ordnance | The Red Badge of Courage | Ordnance Corps | Order of the Badge of Honour | Combat Infantryman Badge | Bureau of Ordnance | badge engineering | Silver War Badge | Improvised Explosive Device | Bomb disposal | Board of Ordnance | Badge of Military Merit | The Badge | Ordnance Datum | Ordnance | Master-General of the Ordnance (Sri Lanka) |