5 Mar 2004 Military
A Mexican Air Force surveillance plane on a drug patrol recorded up to 11 lights visible only in infrared over Campeche. The Defense Ministry gave the video to a UFO researcher, and it aired in May 2004; a later analysis argued the lights were distant oil-platform flares.
Nov 2004 Military
Navy F/A-18F crews from the USS Nimitz strike group, cued by the cruiser USS Princeton's radar, reported intercepting a smooth white object they could not identify. Another crew recorded the infrared video the Pentagon later released as FLIR1.
30 Mar 1990 Military
On March 30-31, 1990, two Belgian F-16s were scrambled after ground radar contacts that matched visual reports; pilots saw nothing but recorded brief radar locks. The Air Force said it could not identify the phenomena; skeptics trace the locks to the other F-16 and false echoes.
19 May 1986 Military
Air Force radar and civilian and military witnesses reported about 21 unidentified objects over four Brazilian states, and five fighter jets were sent to intercept them. The air minister said days later there was no technical explanation; an Air Force report on the night was released in 2009.