Syrian Refugees in Lebanon

A young Syrian girl keeps her fire lit with cardboard at a refugee camp in the eastern Lebanese town of Anjar near the Syrian border, May 13, 2014.

Syrian refugees sit outside their home in a refugee camp in the eastern Lebanese town of Anjar near the Syrian border, May 13, 2014.

A Syrian couple looks out of their house at a refugee camp in the eastern Lebanese town of Anjar near the Syrian border, May 13, 2014.

Tents house Syrian refugees in the city of Arsal in Lebanon's Bekaa valley, near the border with Syria.

Syrians wait for their appointments at the U.N. refugee agency's registration center in Zahleh, in Lebanon's Bekaa Valley, Dec. 18, 2013.

A Syrian girl weeps after receiving the measles vaccine from UNICEF nurses at the U.N. refugee agency's registration center in Zahleh, in Lebanon's Bekaa Valley.

A Syrian refugee stands outside a tent at a makeshift camp in the village of Kfarkahel, in the Kura district near the northern city of Tripoli, Lebanon, Dec. 11, 2013