“As a % of the population they seem to be overrepresented in the military”
Curious as to why you think this? My experience over 52 years as a dependent, an active duty member and a reservist is that atheists are a tiny minority of military members and that Christians of greater or lesser depth constitute the vast majority.
Colonel, USAFR
Although I have to admit that there might well be a selection bias as far as the % self reported for prison, in that there is a “Huckabee effect” that places a premium on Christian repentance in consideration of leniency.
Sgt, USAF.