I live quite near to a military base in the UK, and never think about it.
A couple of weeks ago, I was talking to my DD in my bedroom early one evening when I saw the entire world light up outside, like lightening but it lasted marginally longer and seemed to light up from the ground upwards. Maybe like a gigantic firework flash with a green tinge.
My DD didn’t see it as she was facing me, and when I was saying, “What was THAT?!” and trying to explain, she said I might be delusional 😂. I forgot about it after that. I don’t mention it to anyone else, including my DH.
A few days later, my DH was laughing about our local FB page and said that there are people on there saying they have seen UFOs and “flashes in the sky”.
I asked to look, and I found one man on there said he had seen a green flash, like the one I described, and that it seemed to have come from the direction of the air base. That is actually the direction my window faces in too. The weird thing was, he wrote about seeing the flash a couple of nights before I did. And no-one else seemed to have seen it, just as no-one saw the one I did it seems.
This was over the same period that people had been posting videos of “UFOs”. Some of them are well known tin foil hatters. One isn’t though, he is a photographer who I know and he is pretty sensible, and he put that nothing was showing on the flight radar data while he was filming, and some people were saying it looked like a really big drone. I’d have written it off as nonsense, but I definitely saw something unusual coming from that way !