Cool. Nothing blatantly noteworthy though. They often fly multi-ship, especially on cross-countries. And, helicopters don't fly especially high, especially military helicopters.
I like Ancient Aliens for the entertainment value. And, I don't necessarily discount, "aliens." One thing is for certain though; there is MUCH about Earth's past that is lost/forgotten/hidden. This is why I just shake my head at the Genesis story. The Old Testament was written by a collective of schizophrenic polytheists. Each with an agenda no different than David Koresh or L. Ron Hubbard-make people follow me so I can have sex with their wives and children.
I was a culinary logistics specialist for a few months. Sometimes people called me the pizza delivery guy KEK
Not over-CONUS training flights. Nothing secret about that and posting that they saw a helicopter is not a threat to national security, nor is it a threat to the Pilot/CPG in the birds. Not a bid deal at all, Anon. Go to your nearest Army Guard/Reserve Air Field and you (along with anyone else) can watch them fly all day long.