The beginning of Explosive Ordnance Disposal (EOD) was between the World Wars, and as many things started out of necessity. It has a short history but rich history, with many developments, and changes to its organization. The actual role of disarming Unexploded Ordnance (UXOs) has changed little; the main change is the switching of duties of duties between the Officers and NCOs that it is most significant. With the various munitions we invent to destroy each other, EOD had to developed many means to disable them. It is the heroic actions of NCOs today, that still represents the initial valor required to undertake the missions of Bomb Squad. For the NCOs of EOD today still step forward, and complete the missions and responsibilities that they have had since WW II.