G. Mark’s Answer
I can speak from the point of view of an employer, and that is that folks with military service are assumed to be more reliable, more regimented, more organized and more focused than average. We've viewed these folks as a "better bet" for a job. On top of that, many folks receive training in the military that carries directly into their employment. From my personal point of view, I've considered military service to have done the first part of screening of applicants for my organizations. That's a good thing.