These orbs were sighted by thousands of people on the night of January 23 in Okinawa. They could be flares, but the military says that they were not dropping flares at the time. Possible unknown.
http://www.youtube.com/watch?v=4_E1kWpWURsStory Source:
http://en.rocketnews24.com/2014/01/26/multiple-witness-reports-of-mystery-lights-over-okinawa-video/