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.
I am not quite sure why the embedded video above (which no longer works) is different from the one within the story source.
To watch the intended video, you can either click on the 'Story Source' link above, or go to it directly on YouTube...