When Mr. Obama ordered an additional 30,000 troops to Afghanistan in 2009 with a goal of disrupting, dismantling and defeating Al Qaeda, it included a broader counterinsurgency campaign to protect the population, rebuild the economy and shore up the fragile central government. This broader campaign, which goes far beyond a focused fight against Al Qaeda, is based on the goal of assuring that Afghanistan would never again become a safe haven for the terror organization.

The administration, officials said, was already moving away from this counterinsurgency strategy, toward one with more limited objectives for Afghanistan and a goal of political reconciliation with the Taliban, which once offered Al Qaeda sanctuary there. Drone strikes and nighttime raids, of the kind that killed Bin Laden, would figure even more prominently in such a strategy, officials said.

But reconciling with the Taliban will require an active role by Pakistan, which provides a haven for Taliban leaders. The strains between the United States and Pakistan could make that process more difficult. And Bin Laden’s death near Islamabad has rekindled suspicions in Afghanistan. On Monday, Afghan officials were withering in their criticism of Pakistan as the locus of terrorism.

“Pakistan is the problem, and the West has to pay attention,” said Amrullah Saleh, the former intelligence director of Afghanistan, who resigned last summer. Though jubilant at the death of Bin Laden, he said it was time for the United States to “wake up to the fact that Pakistan is a hostile state exporting terror.”

President Hamid Karzai of Afghanistan was more diplomatic but said Bin Laden’s death should speed the end of the war.

“We said that the fight against terrorism is not in bombing women and children of Afghanistan,” Mr. Karzai said to a meeting of Afghan district leaders on Monday. “The fight against terrorism is in its sanctuaries, in its training bases and in its financing centers, not in Afghanistan, and now it’s proved that we were right.”

Mr. Obama has set a deadline of July for beginning a withdrawal of American forces from Afghanistan. As the White House begins to debate how many troops should leave and how quickly, Pentagon officials and military officers said they expected additional pressure to reassess the strategy and accelerate a withdrawal.