Ukraine

Here is an interesting article I found ~~that I think is about this event~~. It was a team effort between Ukrania S-300 and US Patriot PAC-3 missile systems to lure the planes in and then destroy them.

Sounds like there are only a dozen Russian A-50 remaining in operation, even fewer in the modern configuration, and even fewer qualified radar techs trained to man the tracking stations in the rear.

https://breakingdefense.com/2024/01/after-historic-shoot-down-why-russia-will-struggle-to-replace-its-a-50-aewc-plane/