See query. Prompted by this real vid of a real event with the unfortunate title DEFCON 1 SCENARIO!!! AIR FORCE SCRAMBLES 20 B-52 Bombers into the Air!!!, which apparently is from an exercise six months in the making, which is for all I know intended to be closely watched from satellites.
Spoiler alert: lots of B-52s taking off.
But in the normal military monitoring they (and we Americans) do, what granularity is part of day-to-day awareness?
ETA: I, for one, hereby promise not to repeat any classified information posted in replies.
It should be noted that large training exercises areannounced in advance, presumably to keep other countries from freaking out and launching a defensive attack.