When Sgt. Paul Braun (right) first met Philip, the Iraqi interpreter assigned to his company, he didn't trust him. But after his tour was over, he worked for years to get Philip a visa to come to the U.S. Storycorps hide caption

itoggle caption Storycorps

A Free Syrian Army fighter runs after attacking a tank with a rocket-propelled grenade during fighting in Aleppo, Syria, in September 2012. The rebels say they are willing to take on the Islamic State, but need more weapons. Manu Brabo/AP hide caption

itoggle caption Manu Brabo/AP

Smoke rises from the Syrian town of Kobani, seen from near the Mursitpinar border crossing on the Turkish-Syrian border in the southeastern town of Suruc, Sanliurfa province, on Friday. Murad Sezer/Reuters/Landov hide caption

itoggle caption Murad Sezer/Reuters/Landov

Islamic State flags on the Mullah Abdullah bridge in southern Kirkuk earlier this week. A U.N. report says the extremist group has perpetrated possible war crimes and crimes against humanity. Reuters/Landov hide caption

itoggle caption Reuters/Landov

A Kurdish peshmerga soldier who was wounded Sept. 30 in fierce battles in nearby Nineveh province with Islamic State group militants is brought to the Zakho Emergency Hospital in Dahuk, Iraq. Hadi Mizban/The Associated Press hide caption

itoggle caption Hadi Mizban/The Associated Press

Two Royal Air Force Tornado GR4 fighter jets prepare to take off Saturday from an airbase in Cyprus. The British warplanes were heading on their first mission over Iraq since being given parliamentary authority to strike at ISIS Friday. -/AFP/Getty Images hide caption

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This still image was made from video released by the U.S. military on Tuesday that shows a building hit by a U.S. airstrike in Tall Al Qitar, Syria. The U.S. is describing the bombing campaign in Syria and Iraq as a counterterrorism operation and not a war. U.S. Central Command/AP hide caption

itoggle caption U.S. Central Command/AP

Thousands of Syrians enter Turkey at Yumurtalik crossing gate near Suruc on Tuesday. The United Nations High Commissioner for Refugees has warned of a growing refugee crisis. Burhan Ozbilici/AP hide caption

itoggle caption Burhan Ozbilici/AP

Iraqi Kurdish peshmerga fighters take up positions around the town of Gwer in northern Iraq on Sept. 18. The Kurdish militia is aligned with the U.S. in the battle against the Islamic State. Mohamed Messara/EPA/Landov hide caption

itoggle caption Mohamed Messara/EPA/Landov

Members of the Mehdi Army militia, which once fought U.S. forces in Iraq, take part in training in the southern Iraqi city of Basra on June 17. The militia's fighters now find themselves allied with the U.S. against the self-declared Islamic State. AFP/Getty Images hide caption

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A remote camera screen grab provided by the French army shows two Rafale jet fighters flying over Iraq on Friday. French President Francois Hollande announced that the fighters had carried out their first airstrikes in northern Iraq. AP hide caption

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Members of the anti-war activist group CodePink interrupt a Senate Armed Services Committee hearing with Defense Secretary Chuck Hagel (left) and Gen. Martin Dempsey, chairman of the Joint Chiefs of Staff. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

French President Francois Hollande (right) and Iraqi President Fuad Masum attend the Conference for Peace and Security in Iraq at the Ministry of Foreign Affairs in Paris on Monday. The two leaders were among those urging quick action against Islamic State militants. David Silpa/UPI/Landov hide caption

itoggle caption David Silpa/UPI/Landov

A young Iraqi on Thursday stands amid the debris of a double car bomb attack in Baghdad. There was no immediate claim of responsibility. President Obama's plan to attack Islamic State militants in Iraq and Syria will require help from partners on the ground in both countries. Ahmad Al-Rubaye/AFP/Getty Images hide caption

itoggle caption Ahmad Al-Rubaye/AFP/Getty Images