All news on the topic: National Archives

Tens of thousands of files about blood testing of UK troops in the Cold War were pulled after the Mirror launched a medal campaign

Terry Gledhill died in 2015, but his daughter Jane O’Connor argued that she was able to exercise his legal rights to see the blood test results - now a tribunal ruled in her favour

Officials at the Atomic Weapons Establishment are said to be blocking a ministerial review of secret records about blood tests on Cold War troops

The violent murder of carpenter Kelso Cochrane, who was stabbed by a gang of white youths in London's Notting Hill in 1959, remains unsolved more than six decades later

People ran from their homes in the Berwyn Mountains of Wales believing they had been hit by an earthquake - but they became witnesses to an incident which became known as the Welsh Roswell instead

Records of blood testing of nuclear servicemen have been locked away for decades as a state secret, the Mirror can reveal

A 'crash retrieval' program has been sponsored by the US government for decades, alleges a former air force intelligence official - and says those experts work on reverse engineering alien spacecraft

A former United States Air Force (USAF) officer and intelligence official testified under oath today that he and many other coworkers experienced brutal retaliation and 'administrative terrorism' from superiors when they tried to raise alerts about UFO sightings

As the UFO congressional hearings go on, an ex-navy commander is recounting his experience filming a spaceship jump in a way that 'defied the laws of psysics'

US President Joe Biden authorized the release of thousands of classified documents related to the assassination of former President John F. Kennedy, revealing a previously redacted name in the investigation

Huge bombing campaign that could have cost 20,000 civilian lives was abandoned when Allies decided to focus on Sicily invasion instead

The captain of one of the ships attacked during the Falklands War Bluff Cove disaster in 1982 has hit out at claims made in a new book by a former Welsh Guards officer who survived the air raid