I've landed at USA military bases that have active fighters on the ready (after 911) with zero problems. At one base we landed on the taxy way as the main strip was being up graded in North dokota only to look out the window to see f 16 and 15 on the ready. Not many spots you can't fly over in the USA. Take off put a plan on route get cleareance to 10 then 15 then 20 then25 then 30 doing px checks no dramas nothin a problem.
Cheers