If they were alien they would be fly all over the world over other airbases.
Where are the other reports if so.
Has to be China
Gauls:
https://www.thesun.co.uk/news/15416021/ufo-dogfights-france-probe-pentagon-aliens/
Belgae:
https://en.wikipedia.org/wiki/Black_triangle_(UFO) Black triangle (UFO) - Wikipedia The Belgian UFO wave began in November 1989. The events of 29 November were documented by over thirty different groups of witnesses, and three separate groups of police officers. All of the reports related a large object flying at low altitude. The craft was of a flat, triangular shape, with lights underneath.
Britoni:
The Rendalsham AFB incident is already fairly famous.
They are seen all over the world as are the reports. It’s in news reports and reported by foreign militaries.
It’s not China, if they had that type of technology they’d already be at war with everyone.
There's no reason for them to share what they know especially if these are advanced craft with technology unknown to us.
Image the shift in the balance of military power if Russia or China got it figured out.
“Has to be China”
These UAPs were seen long before China was ever a player.
And by the way, they are seen all over the world.