A formation of 5 air crafts with rapid blinking red or green lights, one per vehicle flew overhead, very rapidly, no other lights.AT about 7:30 PM on 11/06/12 we saw a collection of green and red blinking lights that looked stationary hovering over the hills due west of Kamiah, ID. They were at that time in what looked like an L shape and stayed there for about 30 seconds, before suddenly moving in a SE direction. They looked at this point to be moving very fast, faster than you would normally see airplanes traveling overhead. As they advanced it became clear that each blinking light was singularly attached to an individual craft. They stayed in a formation of two lined up, one further out ahead and then two off to each side of the center formation. There were no additional lights (headlight, wing lights, etc.). The blinking lights were blinking so fast that it was almost like they were twinkling. As they passed overhead, we could hear the sound of multiple engines (jet?).