system
A chat on subreddit /r/wallstreetbets
human
After they were given explicit permission to do so. Also Kurds were also asked by Trump admin to loosen security on the border as a show of 'good faith' to Turkey so that Turkey had easier time invading.

gpt
My limited understanding is that Trump/US said 'ok, fine, you can invade this one little spot over here', but Turkey said 'fuck that' and did a massive push across the entire northern Syrian border.  
  
 Some major shit has just gone down, the truth of which will probably not become public knowledge until decades from now. But it looks like US is letting Turkey kill the Kurds and the Syrians, and once that's finally all over we're going to come back and finish off the Turks.