Foreign Policy Obama officials talk of 'defeating' Islamic State, but what steps will US take?

The talk doesn't mean the US is on the verge of extending its air campaign against Islamic State fighters into Syria, or shifting from an adversarial to cooperative stance with Syrian leader Assad in the interest of defeating IS.

By , Staff writer

Steven Senne/AP

President Obama says the United States will be “relentless” in going after the Islamic State, the militant organization that brutally executed American James Foley this week and whose advances in northern Iraq from its base in Syria prompted the president to order airstrikes earlier this month.