I was walking my (now deceased) dog, Danny. I stopped to watch an airplane fly. It was huge and rectangular, very flat, and marked "POW/MIA". It was flying smoothly and normally until it began to pull upward, then rolled and dove into the ground. A great fireball erupted and debris flew -- a piece of the fuselage about the size of my forearm landed and bounced into my leg.
I walked toward a crowd of people and showed them the debris. As we stood, a line of planes as dense as a line of army ants made a slash across the sky, seemingly unending. Faster triangular formations of smaller jets flew to either side. I thought that it must be war and I felt scared, then I woke up.