Syria

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In this Saturday, Nov. 17, 2012, photo, Syrian rebel fighters prepare to fire a homemade rocket as they carry out a coordinated attack by hundreds of rebel fighters on a Syrian air force compound during heavy clashes on the outskirts of Aleppo, Syria. There is a struggle for power among rebel factions in Syria, with Islamists rejecting the country's new Western-backed opposition coalition and unilaterally declaring an Islamic state in the key battleground of Aleppo, though all of the groups are fighting to topple President Bashar Assad. (AP Photo/Narciso Contreras)

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In this Saturday, Nov. 17, 2012, photo, Syrian residents mourn a rebel fighter during his funeral after he was killed by rocket fire on the outskirts of Aleppo, Syria. Heavy clashes have taken place in the area after rebel groups launched a coordinated attack by hundreds of fighters to seize control over the Syrian army base in the north of the city. There is a struggle for power among rebel factions in Syria, with Islamists rejecting the country's new Western-backed opposition coalition and unilaterally declaring an Islamic state in the key battleground of Aleppo, though all of the groups are fighting to topple President Bashar Assad. (AP Photo/Narciso Contreras)

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Syrian fighters celebrate the victory on top of a tank they took after storming a military base in Aleppo, Syria, on Monday, Nov. 19, 2012. (AP Photo/Khalil Hamra)

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In this image taken from video, which has been authenticated based on its contents and other AP reporting, Syrian rebels capture a helicopter air base near Damascus, Syria, the capital, after fierce fighting on Sunday, Nov. 25, 2012. (AP Photo/Ugarit News via AP video)

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In this image taken from video that has been authenticated based on its contents and other AP reporting, smoke rises from buildings after government shelling in the Damascus suburb of Zabadani, Syria, on Friday, Nov. 23, 2012. (AP Photo/Shaam News Network via AP video)

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In this Saturday, Nov. 17, 2012, photo, a Syrian woman walks in front of a destroyed hospital where heavy clashes took place between rebel fighters and the Syrian army to seize control over the area, on the outskirts of Aleppo, Syria. (AP Photo/Narciso Contreras)

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Opposition fighters celebrate capturing a tank after storming a military base in Aleppo, Syria, on Monday. Islamist rebels refuse to join a Western-backed coalition. (Associated Press)

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**FILE** A Syrian father and two of his sons salvage furniture from their home in Maraat al-Numan, Syria, on Nov. 17, 2012. The house was destroyed in bombing by government forces. (Associated Press)

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Agri, a Kurd from Syria who gave only his first name, said he fled his country due to fighting a few months ago. He said he was attacked in Athens as he walked home one night recently. Human rights and immigrant groups say there has been an increase in racist attacks in Greece over the last year, as the country struggles through a protracted financial crisis. (Associated Press)