U.S. sharpens warning to Pakistan

The Obama administration has sharply warned Pakistan that it must cut ties with a leading Taliban group based in the tribal region along the Afghan border and help eliminate its leaders, according to officials from both countries.

In what amounts to an ultimatum, administration officials have indicated that the United States will act unilaterally if Pakistan does not comply.

The message, delivered in high-level meetings and public statements over the past several days, reflects the belief of a growing number of senior administration officials that a years-long strategy of using persuasion and military assistance to influence Pakistani behavior has been ineffective.

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