system
A chat on subreddit /r/wallstreetbets
human
S-400 interacting with the F-35 is baaaaad. Allows controlled tests of the radar/targeting in relation to the F-35. Basically it gives data to Russia to develop best practice tactics vs the F-35. You generally want your advance stealth fighter to be as much of an unknown as possible

gpt
Nevermind Israelis and US Airforce flying in S400 zones already...Clearly the problem is Turks