WASHINGTON -- The Obama administration gave the first explicit signal Tuesday that it might leave no troops in Afghanistan after December 2014, an option that defies the Pentagon's view that thousands of troops may be needed to keep a lid on al-Qaida and to strengthen Afghan forces.
"The U.S. does not have an inherent objective of `X' number of troops in Afghanistan," said Ben Rhodes, a White House deputy national security adviser. "We have an objective of making sure there is no safe haven for al-Qaida in Afghanistan and making sure that the Afghan government has a security force that is sufficient to ensure the stability of the Afghan government."
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The U.S. now has 66,000 troops in Afghanistan, down from a peak of about 100,000 as recently as 2010. The U.S. and its NATO allies agreed in November 2010 that they would withdraw all their combat troops by the end of 2014, but they have yet to decide what future missions will be necessary and how many troops they would require.
At stake is the risk of Afghanistan's collapse and a return to the chaos of the 1990s that enabled the Taliban to seize power and provide a haven for Osama bin Laden's al-Qaida network. Fewer than 100 al-Qaida fighters are believed to remain in Afghanistan, although a larger number are just across the border in Pakistani sanctuaries.
Defense Secretary Leon Panetta has said he foresees a need for a U.S. counterterrorism force in Afghanistan beyond 2014, plus a contingent to train Afghan forces. He is believed to favor an option that would keep about 9,000 troops in the country.
Administration officials in recent days have said they are considering a range of options for a residual U.S. troop presence of as few as 3,000 and as many as 15,000, with the number linked to a specific set of military-related missions like hunting down terrorists.
Asked in a conference call with reporters whether zero was now an option, Rhodes said, "That would be an option we would consider."
His statement could be interpreted as part of an administration negotiating strategy. On Friday Afghan President Hamid Karzai is scheduled to meet President Barack Obama at the White House to discuss ways of framing an enduring partnership beyond 2014.
The two are at odds on numerous issues, including a U.S. demand that any American troops who would remain in Afghanistan after the combat mission ends be granted immunity from prosecution under Afghan law. Karzai has resisted, while emphasizing his need for large-scale U.S. support to maintain an effective security force after 2014.
In announcing last month in Kabul that he had accepted Obama's invitation to visit this week, Karzai made plain his objectives.
"Give us a good army, a good air force and a capability to project Afghan interests in the region," Karzai said, and he would gladly reciprocate by easing the path to legal immunity for U.S. troops.
Karzai is scheduled to meet Thursday with Panetta at the Pentagon and with Secretary of State Hillary Rodham Clinton at the State Department.
Without explicitly mentioning immunity for U.S. troops, Obama's top White House military adviser on Afghanistan, Doug Lute, told reporters Tuesday that the Afghans will have to give the U.S. certain "authorities" if it wants U.S. troops to remain.
"As we know from our Iraq experience, if there are no authorities granted by the sovereign state, then there's not room for a follow-on U.S. military mission," Lute said. He was referring to 2011 negotiations with Iraq that ended with no agreement to grant legal immunity to U.S. troops who would have stayed to help train Iraqi forces. As a result, no U.S. troops remain in Iraq.
David Barno, a former commander of U.S. forces in Afghanistan and now a senior fellow at the Center for a New American Security, wrote earlier this week that vigorous debate has been under way inside the administration on a "minimalist approach" for post-2014 Afghanistan.
In an opinion piece for ForeignPolicy.com on Monday, Barno said the "zero option" was less than optimal but "not necessarily an untenable one." Without what he called the stabilizing influence of U.S. troops, Barno cautioned that Afghanistan could "slip back into chaos."
Rhodes said Obama is focused on two main outcomes in Afghanistan: ensuring that the country does not revert to being the al-Qaida haven it was prior to Sept. 11, 2001, and getting the government to the point where it can defend itself.
"That's what guides us, and that's what causes us to look for different potential troop numbers -- or not having potential troops in the country," Rhodes said.
He predicted that Obama and Karzai would come to no concrete conclusions on international military missions in Afghanistan beyond 2014, and he said it likely would be months before Obama decides how many U.S. troops -- if any -- he wants to keep there.
Rhodes said Obama remains committed to further reducing the U.S. military presence this year, although the pace of that withdrawal will not be decided for a few months. Last year the U.S. military pulled 23,000 troops out of Afghanistan on Obama's orders.