More airstrikes were launched against the group in November than in any previous month, he said.<br />In recent weeks, the US-led coalition has killed a number of its leaders and attacked oil facilities it controlled.<br />Mr Obama has been seeking to reassure the public following an attack in California that killed 14 people.<br />The two suspects were a radicalised Muslim couple who struck weeks after the killing of 130 people by Islamist gunmen in Paris.<br />Around 9,000 air strikes had been launched against the group since the start of the campaign in the summer of 2014.<br />On Thursday he will visit the National Counterterrorism Center in Virginia, where he is also expected to speak.<br />The National Security Council held a rare outside-of-the-White House meeting at the Pentagon ahead of Mr Obama's remarks.
