Syrian refugee childrenm who now live in Jordan after fleeing the violence in Syria, are seen in an informal tented settlement in Jordan Valley

Syrian refugee children, mostly from Hama but have been living in Jordan for three years since fleeing the violence in Syria with their families, attend a class in a UNICEF tent in an informal tented settlement in Jordan Valley, near Amman March 14, 2015. March 15 marks the fourth anniversary of peaceful protests against Syrian President Bashar al-Assad that started of the devastating conflict. After a government crackdown, the war has expanded into a civil conflict with regional backers. The conflict has killed some 200,000 people, created more than 3.9 million refugees, mostly in Turkey, Lebanon and Jordan, and displaced 7.6 million people within Syria, U.N. figures show. Picture taken March 14, 2015. REUTERS/Muhammad Hamed (JORDAN – Tags: POLITICS CONFLICT CIVIL UNREST SOCIETY IMMIGRATION EDUCATION)