Vice President Joe Biden (right) concludes a meeting with Iraqi Vice President Adil Abd al-Mahdi on Jan. 14 in the Roosevelt Room of the White House. Tim Sloan/AFP via Getty Images hide caption

itoggle caption Tim Sloan/AFP via Getty Images

Debris litters the road after two bombings in the western city of Ramadi, about 60 miles from Baghdad, on Dec. 30. Violence has escalated recently in Anbar province, once the stronghold of al-Qaida in Iraq. Azhar Shallal/AFP/Getty Images hide caption

itoggle caption Azhar Shallal/AFP/Getty Images

Father Saad Sirop Hanna of St. Joseph's Church in the Karada neighborhood of Baghdad greets worshippers at the Christmas Eve Mass. Susannah George/NPR hide caption

itoggle caption Susannah George/NPR