Kabul

An Afghan man heads home walking through a dust cloud as the sun sets in Kabul

Mohammad Ismail/Reuters

An Afghan man heads home, walking through a dust cloud as the sun sets in Kabul on Monday.

A British security official escorts a survivor from the wreckage of a British embassy vehicle after a suicide attack in Kabul on Thursday. A suicide bomber struck the vehicle in Afghanistan's capital on Thursday, killing at least three people and wounding many bystanders

Omar Sobhani/Reuters

A British security official escorts a survivor from the wreckage of a British embassy vehicle after a suicide attack in Kabul on Thursday. A suicide bomber struck the vehicle in Afghanistan’s capital on Thursday, killing at least three people and wounding many bystanders

Afghan security force keeps watch as they block a road

Marai Shah/AFP/Getty Images

Afghan security force keeps watch as they block a road at the site of suicide car bomb at the gate of Green Village compound, a large fortified complex where many foreign employees live and work in Kabul. A Taliban suicide car bomb exploded close to a compound that houses many international contractors, officials said, the latest in a series of explosions to rock the Afghan capital in recent days.

Afghan National Army (ANA) officers take part in a training exercise at the Kabul Military Training Centre (KMTC) in Kabul.

  © Mohammad Ismail/Reuters

Afghan army officers take part in a training exercise at the Kabul Military Training Centre in Kabul. 

An Afghan National Army soldger who survived a road side bomb explosion, walks by the site of the blast in Kabul, Afghanistan, Tuesday, Oct. 21, 2014. At least four Afghan soldiers have been killed in the attack in the capital.

Massoud Hossaini/AP

An Afghan National Army soldier who survived a road side bomb explosion walks past the site of the blast in Kabul, Afghanistan on Tuesday. At least four Afghan soldiers have been killed in the attack.

An Afghan youth sits astride the gun barrel of a Soviet-era tank, in Kabul, Afghanistan, 29 August 2014. Soviet troops occupied the country for ten years from 1979 to 1989.

Jawad Jalali/EPA

An Afghan youth sits astride the gun barrel of a Soviet-era tank, in Kabul, Afghanistan on Friday. Soviet Union troops occupied Afghanistan for ten years from 1979

Afghan security personnel investigate a damaged minivan which was hit by a remote controlled bomb on the outskirts of Kabul, Afghanistan, Tuesday, July 15, 2014. Gul Agha Hashimi, the chief of criminal investigations with the Kabul police, said the explosion struck the minivan carrying seven staffers of the palace's media office on Tuesday morning. The blast killed two passengers and also wounded five people, including the driver.

Rahmat Gul/AP

Afghan security personnel investigate a damaged minivan which was hit by a remote controlled bomb on the outskirts of Kabul, Afghanistan on Tuesday

Supporters of Afghan presidential candidate Abdullah Abdullah take down a large portrait of Afghan President Hamid Karzai before a gathering in Kabul July 8, 2014. Abdullah told thousands of supporters on Tuesday he was the winner of last month's run-off election, putting himself on a collision course with his arch-rival, Ashraf Ghani. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS TPX IMAGES OF THE DAY)

Omar Sobhani/Reuters

Supporters of Afghan presidential candidate Abdullah Abdullah take down a large portrait of Afghan president Hamid Karzai before a gathering in Kabul. Abdullah on Tuesday told thousands of supporters he was the winner of last month’s run-off election, putting himself on a collision course with his rival, Ashraf Ghani.

Supporters of Afghan presidential candidate Abdullah Abdullah chant slogans during a protest in Kabul, Afghanistan, Friday, June 27, 2014. Afghanistan's security situation has been complicated by a political crisis stemming from allegations of massive fraud in the recent election to replace President Hamid Karzai, the only leader the country has known since the Taliban regime was ousted nearly 13 years ago. Abdullah Abdullah, one of two candidates who competed a runoff vote on June 14 suspended his relations with the Independent Election Commission after he accused electoral officials of engineering extensive vote rigging, allegations they have denied

Rahmat Gul/AP

Supporters of Afghan presidential candidate Abdullah Abdullah chant slogans during a protest in Kabul, Afghanistan on Friday

Afghan National Army (ANA) soldiers prepare to leave their base for a patrol at polling stations in the outskirts of Kabul June 12, 2014. The second round of Afghanistan's presidential election will be held on June 14.

Omar Sobhani/Reuters

Afghan National Army soldiers prepare to leave their base for a patrol at polling stations in the outskirts of Kabul. The second round of Afghanistan’s presidential elections will be held on June 14