Faces of young Afghan refugees

Muhammed Muheisen/AP

Portraits of Afghan refugee children in a slum on the outskirts of Islamabad, Pakistan, Jan. 24 - Jan. 27, 2014.

For more than three decades, Pakistan has been home to one of the world’s largest refugee communities: hundreds of thousands of Afghans who have fled the repeated wars and fighting their country has undergone.

Since the 2002 U.S.-led invasion of Afghanistan, some 3.8 million Afghans have returned to their home country, according to the U.N.’s refugee agency.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Khalzarin Zirgul, 6, holds her cousin, Zaman, 3 months, as they pose for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan, Jan. 27, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Nazmina Bibi, 7, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Hazrat Babir , 7, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 26, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee, Akhtar Babrek, 13, poses for a picture, in a slum on the outskirts of Islamabad, Jan. 24, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Allam Ahmad, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 27, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Hayat Khan, 8, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 24, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Madina Juma'a, 4, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 27, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Noorkhan Zahir, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 26, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Basmina, 3, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Safia Mourad, 4, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 24, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Zarlakhta Nawab, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Shahzada Saleem, 15, holds his nephew Satara, two months, as they pose for a picture, in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Waheed Wazir, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee, Gullakhta Nawab, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 25, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Naseebah Zarghoul, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 24, 2014.

Islamabad

Muhammed Muheisen/AP

Afghan refugee Awal Gul, 12, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Jan. 24, 2014.