Iraqi security forces say they arrested Abu Omar al-Baghdadi in April. US officials say they are uncertain whether the name refers to a specific person or is simply a commonly used pseudonym within the insurgency.
The dramatic drop in violence over the past year is due in part to US-led efforts. But the insurgency could linger.
The dramatic drop in violenc over the past year is due in part to US-led efforts. But the insurgency could linger.
The attack came in Mosul, the most dangerous city in Iraq.
On a surprise visit that lasted less than five hours, the US president also met with Iraq's prime minister.
The president fielded questions on Iraq before heading to Baghdad for an unannounced visit.
Gen. Raymond Odierno outlines the challenges facing US forces as they continue to tamp down violence while working toward a June deadline to withdraw from Iraqi cities.
American forces will seek to disprove the perception that they are more heavy-handed than the British.
The strategy must focus less on elections and more on political bargains that promote a new Iraqi national compact.
The two combat brigades that would have replaced them will go to Afghanistan instead.