Falkland Islands

LONDON - Britain's opposition chief - and possible next leader - said Wednesday the failure of the United States to back London in a dispute with Argentina was disappointing, as he promised a more candid relationship with Washington if he wins office.

BUENOS AIRES, Argentina - Argentina's foreign minister asked the head of the United Nations on Wednesday to help resolve a dispute with Britain over a vast swath of the southern Atlantic Ocean where Britain has begun drilling for oil.

PLAYA DE CARMEN, Mexico - Latin America and Caribbean leaders united Tuesday to create a regional bloc excluding Canada and the United States, but its birth was undermined by a spat in which the Colombian president told Venezuela's Hugo Chavez to "be a man." Many of the 32 Latin American and Caribbean countries participating in the summit have long called for a new organization that will not be dominated by the interests of their two wealthy northern neighbors.