Britain deployed a laser weapon to the Falklands that was designed to "dazzle" Argentine pilots during battle, newly-released Government papers reveal.
Despite being quietly and hurriedly developed, the weapon was never used in action, according to a 1983 document released by the National Archives today.
The letter is dated January 1983 and marked "Top Secret and UK Eyes A," from the then newly-appointed Defence Secretary Michael Heseltine to Prime Minister Margaret Thatcher.
Mr Heseltine wrote: "We developed and deployed with very great urgency a naval laser weapon, designed to dazzle low flying Argentine pilots attacking ships, to the Task Force in the South Atlantic.
"This weapon was not used in action and knowledge of it has been kept to a very restricted level."
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