US F-35A Shoots down armed Turkish drone after it came too close to US troops in Syria

Ryder said U.S. forces observed Turkish drones doing airstrikes around Hasakah at about 7:30 a.m. local time, and some strikes were inside a so-called American “restricted operating zone” just a kilometer (about a half mile) from U.S. troops. He said a bit later a Turkish drone re-entered the restricted area “on a heading toward where U.S. forces were located.”

Sounds an awful lot like an occupation zone to me. With what legitimacy does America act?