What is going in the sky at night

I know I know....
Aliens, right? listen up, after doing some research on the subject and after getting night goggles (highly recommended)
I've come to the conclusion that something weird as hell is flying E v e r y night, in the sky above our heads.
some us would call it UFO, but that could be a little bit misleading, rather , lets look at the possibility that they are, simply, the most advanced military spaceships.
Don't take my word for it, just DYOR!