The United States under President Donald Trump has been waging an all-out economic and diplomatic war against Iran, but a Wall Street Journal report shows the pressure campaign encompasses an expansive yet lesser-known public relations aspect as well that specifically targets Iranian people.

Yemen’s Houthi Ansarullah movement has considerably upgraded the precision of its armed drones, the Wall Street Journal said in a new report, describing the group as the world’s “most proficient” in using unmanned aerial vehicles.