I can't help you with Army nursing, but I can help you with Air Force nursing. I'm a 23 year old RN who has been in the AF now for 6 months, after doing a year of civilian nursing.
AF nursing rocks! I didn't know what to expect before I joined, but knew it couldn't be worse than civilian nursing, and I was right. As a new nurse with little or no experience you will probably, in the AF, start your career on an MSU floor or a regular Med Surg florr. MSU stands for multiservice unit. It pretty much means you will get any sort of patient that can get thrown to you that doesn't need an ICU bed. Yesterday I had a 12 month old with pneumonia, a 52 y.o S/P LOA and SBO surgery, an 82 y.o. with bilateral foot cellulitis, renal insufficency, cardiac arrythmias, a 17y.o s/p appy and ovarian cyst removal who also had C.P., and an 11 y.o s/p tonsillectomy who couldn't stop throwing up.
It was a typical day for us.
Nursing in the military seems to be more of a team sport. We only have room for 12 beds, which means I can actually have 12 patients by myself with only 1 tech. That rarely happens, mostly because, esp on day shift, your nurse manager will help as will your NCOIC (the tech's boss). It also seems that your fellow nurses want to help more. If I do get slammed, it's understood that I can call my boss at home or any of my coworkers and they will come in and help me out.
If you do choose the AF, right out of school, they will send you to a nurse transition program that lasts a few months. If you do have experience, they will just send you to Officer's Training School, which for medical staff is only 4 weeks, not 13.
I can't stress to you enought how much better it is here when you are a new nurse as opposed to one on the outside. It's not without it's problems, but it's better than anything else I've seen.
Oh and the AF only accepts RN's with their BSN.
Hope this helps.