The Pentagon released a fourth batch of files on Unidentified Anomalous Phenomena (UAP) on Friday, with 40 new declassified files. 

President Trump previously directed the Department of War and other agencies to begin the process of identifying and declassifying government files related to UAP and extraterrestrial life in the interest of total transparency.

The latest batch of files details the bizarre sightings, with unclassified reports from the military and various agencies, including one where a US military aviator describes seeing an object "unlike anything I had seen" in 28 years of Air Force and Navy service. The sighting was reported flying over the Eastern United States in a 2019 Range Fouler Debrief, which the Pentagon says is "a standardized reporting from the U.S. Navy uses to record the circumstances surrounding an unauthorized intrusion into controlled airspace during active military operations or training."

"In between mission sorties, I noticed an object with flight characteristics unlike anything I had seen in my 28 years of performing for the USAF and Navy. A small object was below us and appeared to be traveling in a straight line opposite our direction at high speed. I tracked it for ~10-15 seconds before we turned on the recorder to provide the attached video. When I zoomed in to try and achieve more resolution, the object's speed took out of my FOV and I was unable to reacquire, even at a lower zoom," the aviator wrote.

Video of the incident shows what looks like a ball of light, which the aviator said "appeared to be rectangular," flying at high speed.

In another file, the Department of Energy details a September 1, 2015, incident, where an unidentified object intruded into the airspace above the Pantex Plant near Amarillo, Texas. According to the Pentagon, the Pantex Plant "is a sensitive national security site that contains the primary facility for the assembly, disassembly, maintenance, and life-extension of nuclear weapons."

Officers who chased the object in their vehicles described it as "a 'diamond' type shape with it being more round at the top," and they "noted that the object seemed to increase in speed and changed direction as it was being followed," according to the report.