Ali, an Iraqi teenager, wears Spc. Justin Cliburn's helmet and radio equipment in Baghdad. Ali and Cliburn became unlikely friends while Cliburn trained Iraqi police in 2005 and 2006. Courtesy of Justin Cliburn hide caption

itoggle caption Courtesy of Justin Cliburn

A scene from the early days of the fighting in Iraq in the spring of 2003. In one incident, three members of an Iraqi family were killed. A U.S. Marine involved in the shooting recently tracked down the family to ask for forgiveness. Laurent Rebours/AP hide caption

itoggle caption Laurent Rebours/AP

Sgt. Ben Roberts (center), recently returned from Afghanistan, speaks with Chick-fil-A manager Michael Sims at a military job fair in Columbia, S.C., in January. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

A Sudanese demonstrator burns a German flag as others shout slogans after torching the German embassy in Khartoum during a protest against a low-budget film mocking Islam on Friday. Around 5,000 protesters in the Sudanese capital angry over the amateur anti-Islam film stormed the embassies of Britain and Germany, which was torched and badly damaged. Ashraf Shazly/AFP/Getty Images hide caption

itoggle caption Ashraf Shazly/AFP/Getty Images

Members of the military listen to President Obama during his visit to Fort Bliss, Texas, on Friday. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP