Controversy exists over the Falklands' original discovery and subsequent colonisation by Europeans. At various times there have been French, British, Spanish, and Argentine settlements. Britain re-established its rule in 1833, though the islands continue to be claimed by Argentina. In 1982, following Argentina's invasion of the islands, the two-month-long undeclared Falklands War between both countries resulted in the surrender of all Argentine forces and the return of the islands to British administration.