British spies tried to catch UFOs to steal ETI technology
The UK used spies to obtain UFO technology according to the X-Files.
The United Kingdom was worried that China and Soviet Union had taken down a UFO and adopted alien technology to make faster planes that are invisible to radar or other military purposes and for that reason, the Ministry of Defense ran two secret UFO desks.
One for the public where UFO reports were received and one where the action took place, behind the scenes, and nobody were aware of that. This is evident from newly released UFO documents between 1947 and 1997.