I graduated in 1973, enlisted the same year. Retired in 1997, after 24 years on active duty in the USAF. At the end, I was (among other things)teaching “Law of Armed Combat” (LOAC) or what they used to call the Laws of War. We did a fair amount of time on the duty to disobey unlawful orders.
I'm still in touch with people on active duty, as my particular ward is the one for Tinker AFB, and I'm not seeing any evidence that the current force is all that sissified. Not just USAF, either, as we've got Navy folks here, too. Got a couple of cousins still in the Army, as well. Not hearing anything from them that would make me doubt them, either.
That said, I expect that you will find, in any military anywhere, folks who will go along with unlawful orders. I'd expect that to be much less than half, but possibly as many as a third, but that is just my opinion, and you know that they say about opinions...
Old Student
WRM, MSgt, USAF(Ret.)