Secretary of State John Kerry (second from left) arrives at Irbil International Airport with U.S. Ambassador to Iraq Robert Stephen Beecroft (fourth from left) on Tuesday. The president of Iraq's ethnic Kurdish region declared Tuesday that "we are facing a new reality and a new Iraq." Brendan Smialowski/AP hide caption

itoggle caption Brendan Smialowski/AP

Rebels of the Kurdistan Workers Party, or PKK, begin to move out of Turkey to bases in northern Iraq, a key stage in the peace process with the Turkish government. Here, PKK fighters are shown near the Turkish border with Iraq on May 7. Firat News Agency/AP hide caption

itoggle caption Firat News Agency/AP