Protesters hold placards during a demonstration in solidarity with the enhabitants of the embattled Syrian city of Aleppo, outside the entrance to Downing Street, in central London on December 13, 2016. Civilians and rebel fighters were to start evacuating from Syria's Aleppo "within hours" under a deal reached Tuesday that would end years of opposition resistance in the city. Rebel officials, Russia and Turkey confirmed the agreement which, if implemented, would mark a major victory for President Bashar al-Assad over opposition forces who rose up against him in 2011. / AFP PHOTO / DANIEL SORABJI