IMO the danger to US service members outside of combat seems way too high. It's a well known fact most fatalities occur during training than during combat. (Sure this due to there being many more training exercises than active combat engagements but from a policy perspective it is very worrying).
https://en.wikipedia.org/wiki/List_of_accidents_and_incident...
https://www.edwards.af.mil/News/Display/Article/4517897/b-52...
https://www.reuters.com/business/aerospace-defense/russian-s...