The military has claimed the lights were flares being used in a training exercise. This is a ridiculous explanation of course since the orbs never descended to the ground and maintained a precise formation. One of the witnesses said:
"It looked like it was coming straight towards us in the sky, and once it changed directions, that was the odd part, that it changed it's course." Flares don't changed course. These orbs are obviously intelligently controlled. Not flares.