From Wikipedia

 Falklands war:
 How Close To Defeat

The conflict was the result of a protracted diplomatic confrontation regarding the sovereignty of the islands. Neither state officially declared war and the fighting was largely limited to the territories under dispute and the South Atlantic. The initial invasion was characterised by Argentina as the re-occupation of its own territory, and by the UK as an invasion of a British dependent territory. As of 2010 and as it has since the 19th century, Argentina shows no sign of relinquishing its claim. The claim remained in the Argentine constitution after its reformation in 1994.