Margaret Thatcher's private papers from 1982 have been made public for the first time.
They reveal the fiery debates that took place over how the British Government was to respond when Argentina invaded the Falklands.
The Churchill Archives Centre at Cambridge University holds more than one million documents on Baroness Thatcher, including photographs, press cuttings, audio clips and video tapes.
Lady Thatcher was born and raised in Grantham, Lincolnshire.
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The section has an extra lane in both directions and new overhead signs.