Well, let’s look at the points you provided:
1. Every activity has a certain amount of risk involved. Even just getting up and walking across the street. I’m certain that there are civilian jobs that are more dangerous than those of a non-combat solider in the Air Force. Of course, you still have to do your hishtadlus to determine if you are, in fact, putting yourself at *unnecessary* risk.
2. I know next to zilch about military culture, so I can’t really address this point. All I can tell you is that there are frum chaplains in the military. Perhaps you should reach out to one of them and have a serious discussion on the matter.