LONDON (AP) — Britain has reasserted its sovereignty over the Falkland Islands after Argentina pulled out of a cooperation agreement and demanded new talks over the South Atlantic territory that sparked a 1982 war between the two countries. Britain, which says its territorial claim dates to 1765, sent a warship to the islands in 1833 to expel Argentine forces who had sought to establish sovereignty over the territory. David Rutley, Britain’s minister for the Americas, expressed disappointment in Argentina’s decision