a fleet of disc-d alien ships darkens the blue sky as a truck fire beam wreaks havoc on a crowded city bridge. amid the

drone drones alien invasion aliens space ship extraterrestrial attacking attack uap ufo unknown flying object city truck fire beam bridge traffic jam chaos skyscrapers skyline daytime blue sky vehicles abandoned people panicking cars evacuation disaster scifi futuristic battle technology threat urban war spaceships spacecraft hostile destruction plateshaped panic fleeing hostility apocalypse warfare