The Falkland Islands War, also called Falklands War, Malvinas War, or South Atlantic War, was a brief undeclared war fought between Argentina and Great Britain in 1982 over control of the Falkland Islands (Islas Malvinas) and associated island dependencies.

Argentina had claimed sovereignty over the Falkland Islands, which lie 300 miles (480 km) east of its coast, since the early 19th century, but Britain seized the islands in 1833, expelling the few remaining Argentine occupants, and since then consistently rejected Argentina’s claims.

Diplomatic relations between the United Kingdom and Argentina were restored in 1989 following a meeting in Madrid, Spain, at which the two governments issued a joint statement. No change in either country's position regarding the sovereignty of the Falkland Islands was made explicit. In 1994, Argentina adopted a new constitution, which declared the Falkland Islands by law as an Argentine province. However, the islands continue to operate as a self-governing British Overseas Territory.

More Info: www.britannica.com