First, the reg now states that it is one award currently, no matter how many tours or in what theater. I would assume that Iran would be lumped into that as well. A star would be added for each war--i.e. one for WWII, one for Korea, one for Vietnam, one for Desert Storm, etc. The current time frame goes back to just after Vietnam, I believe. You do not get one for just being in country. I know many medics who I served with in Iraq and they did not qualify. You do not have to be close contact, but do have to be under fire while rendering aid. That leaves a lot open for interpretation. Does it have to be two way fight or does incoming mortars count? Does one have to be one patrol or can it be awarded for "contact" on base?? Also, you do have to be attached to a combat arms batallion (infantry, armor, etc.). You cannot be a part of a Combat Service Hospital (CSH) and get one. The medic would get a CAB in that case. The CMB was initially meant to mirror the CIB as the medics were sharing the same hardships and deserved to be recognized. I would think that the medic in your example would qualify.