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| 1977 | Callaghan, James |  |
| 1st Jan Britain's new 200 mile fishing zone comes into effect |
| 1982 | Thatcher, Margaret Hilda |  |
| 5th April Falklands British Government announces it will impose a 200-mile exclusion zone around the Islands on 26 April |
| 12th April Falklands 200 mile maritime exclusion zone around the Islands declared by Britain to prevent Argentine reinforcements and supplies reaching the Islands from the mainland |
| 12th April Falklands The maritime exclusion zone comes into operation |
| 19th April Falklands The exclusion zone comes into force |
| 30th April Falklands Maritime exclusion zone is declared a total exclusion zone, applicable to all ships and aircraft supporting the Argentine occupation of the Islands |
| 7th May Falklands Britain extends total exclusion zone to 12 miles off Argentine coast |
| 7th May The exclusion zone is extended to 12 miles off the Argentine coast |
| 20th June Falklands 200 mile exclusion zone established around the Islands during the war is replaced by a Falkland Islands Protection Zone of 150 miles |
| 22nd July Falklands Britain lifts the Exclusion Zone around the Islands |