UFO files released by The National Archives (UK) this month

This month The National Archives in the United Kingdom released UFO files. In this video Dr. David Clarke discusses the highlights of the UFO files. I have long been interested in the UFO phenomenon for many years, not just craft that flout on water or are found below the water's surface but also craft that navigate Earth's airspace and in outerspace itself. Have a look for yourself. - Volker