For 10 points name, this site of a 1914 naval battle and a 1982 war between Great Britain and Argentina, a group of islands off the coast of Argentina.
In a World War I battle at this location, British gunners initially missed the German ships by about a hundred meters because the Coriolis force corrections in their sights were of the opposite sign. During another conflict at this location, one side abandoned Operation Mikado, while the other developed the Fenix Squadron. That war saw ships like Alantic Conveyor, Antelope, and Sheffield lost to the combination of Etendards and Exocet missiles.  It also saw minor fights at Two Sisters Ridge and Mount Harriet during the fall of Stanley, as well as the Battle of Goose Green. That conflict led to residents of this location celebrating Margaret Thatcher Day.  For 10 points name, this site of a 1914 naval battle and a 1982 war between Great Britain and Argentina, a group of islands off the coast of Argentina.
In a World War I battle at this location, British gunners initially missed the German ships by about a hundred meters because the Coriolis force corrections in their sights were of the opposite sign.
{Falkland} Islands ({Islas Malvinas})