In 2004, a pair of US Navy FA/18F Super Hornets were vectored to unusual radar contacts off the coast of the principal homeport of the US Pacific Fleet San Diego. They saw a fleet; ‘Some kind of aircraft at 80,000 ft, dropped down to 20,000 ft, dived towards the sea hover at 50-ft from the surface, then went head on to the aircraft but broke off, proceeded to a CAP point to only see the unidentified aircraft there, then disappeared’ The contacts were recorded and passed on to the Pentagon; Advanced Aviation Threat Identification Program.
The Pentagon admitted it has been studying UFO sightings by it’s military personnel. They Pentagon released a video of the Navy’s encounter.