President Barack Obama signs the Clay Hunt Suicide Prevention for American Veterans Act, named for a Marine Corps combat veteran who struggled with post-traumatic stress disorder after serving in Iraq and Afghanistan and who killed himself in March 2011 at the age of 28. The bill calls for evaluation and expansion of existing Veterans Affairs mental health and suicide prevention programs. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Alleged Taliban militants patrol on an Afghan police vehicle in Kunduz, Afghanistan. The Taliban is believed to have taken control of Kunduz, their first capture of a major urban area since the U.S. invasion of 2001. Stringer/EPA/Landov hide caption

itoggle caption Stringer/EPA/Landov

Pakistani border guards stopped Afghan refugees from entering in late 2000. Authorities closed the border to stop the influx of refugees into Pakistan, which was already hosting millions of displaced Afghans. HAIDER SHAH/AP hide caption

itoggle caption HAIDER SHAH/AP

Syrian refugee woman cries by one of her children as she and family members arrive in an overcrowded dinghy on the Greek island of Lesbos after crossing a part of the Aegean Sea from the Turkish coast, on Saturday. Yannis Behrakis/Reuters/Landov hide caption

itoggle caption Yannis Behrakis/Reuters/Landov

Soldiers walk past a military police officer (right) patrolling the perimeter of the U.S. Army IMCOM HQ building at Fort Sam Houston, Texas, prior to the Article 32 preliminary hearing to determine whether Army Sgt. Bowe Bergdahl will be court-martialed. Darren Abate/AP hide caption

itoggle caption Darren Abate/AP

A migrant girl holds a sign expressing her love to Germany as she arrives at the train station in Saalfeld, central Germany, on Saturday. Hundreds of refugees arrived in a train from Munich to be transported by bus to an accomodation center. Jens Meyer/AP hide caption

itoggle caption Jens Meyer/AP

Inspektor Jan Gieber of Austrian police shows the inside of the large van outside the police station in Braunau, Upper Austria, on Sunday, where the children were found among 26 migrants trying to reach Europe. Daniel Scharinger/EPA/Landov hide caption

itoggle caption Daniel Scharinger/EPA/Landov

Migrants from Africa receive instruction in French in the port city of Calais. Some 3,000 migrants live in a makeshift camp known as "The Jungle." Most are seeking to travel on to Britain, while some are seeking asylum in France. Ari Shapiro/NPR hide caption

itoggle caption Ari Shapiro/NPR

Afghan security forces and British soldiers inspect the site of a suicide attack in the heart of Kabul, Afghanistan, on Saturday. Three American civilian contractors are reportedly among the dead. Massoud Hossaini/AP hide caption

itoggle caption Massoud Hossaini/AP

Afghan security forces inspect a suicide bombing attack on Aug. 10 near the main gate of Kabul's international airport. It was one of a series of recent attacks in the Afghan capital that have left at least 50 dead. Violence in Afghanistan has increased since U.S. combat troops pulled out last year. Massoud Hossaini/AP hide caption

itoggle caption Massoud Hossaini/AP

A 1998 file photo of Ayman al-Zawahri speaking at a news conference in Khost, Afghanistan. The reclusive al-Qaida leader says he has pledged support to the new chief of the Taliban, Mullah Akhtar Mansoor. Mazhar Ali Khan/AP hide caption

itoggle caption Mazhar Ali Khan/AP

National Geographic photographer Steve McCurry, shown in Kuwait in 1991, says his big break came at a refugee camp near Peshawar, Pakistan, after he heard the sound of children laughing. Courtesy of Steve McCurry hide caption

itoggle caption Courtesy of Steve McCurry