NEWPORT, Wales — President Obama escalated the US response to the marauding Islamic State on Friday, recruiting at least nine allies to help crush the organization and offering the outlines of a coordinated military strategy that echoes the war on terror first developed by President George W. Bush more than a decade ago.

In his most expansive comments to date about how the United States and its friends could defeat the Islamic State — a once-obscure group of Sunni militants that has upended the Middle East and overshadowed Al Qaeda — Obama said the effort would rely on US airstrikes against its leaders and positions, on strengthening the moderate Syrian rebel groups to reclaim ground lost to the Islamic State, and on enlisting other friendly governments in the region to join the fight.


While the president's aides maintained that he has not yet decided to authorize airstrikes in Syria — which he has done on a limited basis in Iraq — Obama likened his developing strategy to the US effort against Al Qaeda in Pakistan's tribal regions, which has relied heavily on airstrikes.

Obama has been under enormous pressure to articulate a way to counter Islamic State, which has proclaimed itself an Islamic caliphate that knows no borders and has behaved ruthlessly toward its enemies, including the videotaped beheadings of two Americans. After creating a political tempest by saying last week that his administration lacked a strategy, Obama sought Friday to portray himself as spearheading the effort.

But in so doing, the president risks further entangling the US military in exactly the type of costly foreign conflict he has long sought to escape. And his administration has been unable to explain how he can vanquish the Islamic State without indirectly aiding President Bashar Assad of Syria, regarded by the administration as an odious leader who must resign.


Nonetheless, Obama's comments, made at the conclusion of a NATO summit here, were in effect a significant expansion of his own earlier assessments of the threat — simply by offering a direct comparison to the strategy against Al Qaeda militants.

"You initially push them back, you systematically degrade their capabilities, you narrow their scope of action, you slowly shrink the space, the territory that they may control, you take out their leadership," Obama said at a news conference here. "And over time, they are not able to conduct the same kinds of terrorist attacks as they once could."

He said that "we are going to degrade and ultimately defeat ISIL, the same way that we have gone after Al Qaeda," using an alternate acronym for the Islamic State. He drew the analogy to Pakistan as an example of how the United States can go to war against militants while limiting the number of US ground combat troops.

Obama spoke after aides had unveiled what Defense Secretary Chuck Hagel called the "core coalition" to fight the Islamic State militants, the outcome of a hastily organized meeting on the sidelines of the NATO summit talks. Diplomats and defense officials from the United States, Britain, France, Australia, Canada, Germany, Turkey, Italy, Poland, and Denmark huddled to devise a two-pronged strategy: strengthening allies on the ground in Iraq and Syria, while bombing Sunni militants from the air.

"There is no containment policy for ISIL," Secretary of State John Kerry said at the start of the meeting. "They're an ambitious, avowed, genocidal, territorial-grabbing, caliphate-desiring quasi state with an irregular army, and leaving them in some capacity intact anywhere would leave a cancer in place that will ultimately come back to haunt us."


But he and other officials made clear that at the moment, any ground combat troops would come from either Iraqi security forces and Kurdish peshmerga fighters in Iraq, or the moderate Syrian rebels opposed to Assad in Syria. "Obviously I think that's a red line for everybody here: no boots on the ground," Kerry said.

An administration official said the reasons for assembling a coalition went beyond any political cover that such an alliance may provide with a war-weary American public. The official said certain countries bring expertise, like Britain and Australia in special operations, Jordan in intelligence and Saudi Arabia in financing.

"Sure, the American military can handle airstrikes," the official said, speaking on condition of anonymity. "But it's always nice to have help from your friends."

US officials are hoping to expand the coalition to many countries, particularly in the region. Obama administration officials said privately that in addition to the participants at the meeting Friday, the United States was hoping to get quiet intelligence help about the Sunni militants from Jordan. Its leader, King Abdullah II, was attending the Wales summit.

US officials said they also expected Saudi Arabia to contribute to funding moderate Syrian rebel groups. In addition, Yousef Al Otaiba, the United Arab Emirates ambassador to the United States, said in a statement this week that the Emirates stood ready to join the fight against the Islamic State. "No one has more at stake than the UAE and other moderate countries in the region that have rejected the regressive Islamist creed and embraced a different, forward-looking path," the ambassador said.


Enlisting support from Sunni populations in Syria and Iraq is crucial, experts said, because airstrikes alone will not suffice.