Meet Afghan refugees – Khalzarin Zirgul, 6 and Zaman, 3 months -- For more than three decades, Pakistan has been home to one of the world's largest refugee communities.
Madina Juma'a, 4 – Madina Juma'a, 4 -- Associated Press chief photographer in Pakistan, Muhammed Muheisen, photographed Afghan children in a slum on the outskirts of Islamabad.
laiba Hazrat, 6 – laiba Hazrat, 6 -- The award-winning photographer captured the toll the conflict had on very young Afghan refugees.
Waheed Wazir, 6 – Waheed Wazir, 6 -- "Their tough life makes them look older and react as elderly people," Muheisen told Time magazine.
Gul Bibi Shamra, 3 – Gul Bibi Shamra, 3 -- "Their innocence is right there in their eyes," Muheisen said.
Safia Mourad, 4 – Safia Mourad, 4 -- Hundreds of thousands of Afghans have fled the repeated wars and fighting their country has undergone to settle in Pakistan.
Gullakhta Nawab, 6 – Gullakhta Nawab, 6 -- Since the 2002, some 3.8 million Afghans have returned to their home country, according to the U.N.'s refugee agency.
Zarlakhta Nawab, 6 – Zarlakhta Nawab, 6 -- Nearly 1.6 million registered Afghan refugees remain in Pakistan, with another million living here illegally, the U.N. estimates.
Robina Haseeb, 5 – Robina Haseeb, 5 -- "I wanted to photograph them to show what I see every time I step in those slums," Muheisen said.
Naseebah Zarghoul, 6 – Naseebah Zarghoul, 6 -- Despite feeling alienated in Pakistan, many refugees say they wouldn't take the risk of returning to Afghanistan.
Basmina, 3 – Basmina, 3 -- Civilian casualties in Afghanistan increased by a quarter in 2013, the United Nations said.