Japan - U.S. Military Helicopter Crashes on Okinawa - NYTimes.com One crew member was missing after a United States military helicopter crashed during a training exercise on Japan's southern island of Okinawa on Monday, the Air Force said. The three other crew members were in stable condition after the HH-60 helicopter crashed in an uninhabited training area on an American base, the Air Force said. No Okinawan civilians were injured, the local news media said. Still, Japanese officials in Tokyo expressed concern that the accident could stoke anger against the large American military presence on Okinawa. Defense Minister Itsunori Onodera demanded an investigation.