Dempsey says they're not UAS or Drones, but RPV.

Defense.gov News Article: Military Uses Remotely Piloted Aircraft Ethically

ABOARD A U.S. MILITARY AIRCRAFT, May 22, 2014 – Army Gen. Martin E. Dempsey bristles when he hears someone use the word drone. “You will never hear me use the word ‘drone,’ and you’ll never hear me use the term ‘unmanned aerial systems,’” the chairman of the Joint Chiefs of Staff said today. “Because they are not. They are remotely piloted aircraft.”