Video: David Cameron: deaths of Syrian children 'a stain on the UN' Citing changes across the Middle East, Mr Cameron said, "Look at Libya since the fall of Gaddafi. We've seen elections to create a new Congress. And now plans to integrate armed groups into the national police and army. The Arab Spring has also brought progress in Egypt where the democratically-elected president has asserted civilian control over the military, in Yemen and Tunisia where elections have also brought new governments to power and in Morocco where there's a new constitution and a prime minister appointed on the basis of a popular vote for the first time. In criticism of Syria's president Bashar al-Assad, Mr Cameron said the only way forward for the conflict-torn country was for the leadership to change. Assad is today inflaming Syria's sectarian tensions, just as his father did as far back as the slaughter in Hama 30 years ago. And not only in Syria. Assad has colluded with those in Iran who are set on dragging the region to a wider conflict. The future for Syria is a future without Assad," he said. He warned that the blood of the children killed in the violence in Syria was a stain on the United Nations and urged the Security Council to act swiftly to implement regime change. The blood of these young children is a terrible stain on this United Nations. And in particular, it is a stain on those who have failed to stand up to these atrocities and in some cases aided and abetted Assad's regime of terror. If the United Nations Charter is to have any value in the 21st Century we must now join together to support a rapid political transition. And at the same time no one of conscience can turn a deaf ear to the voices of suffering. Security Council Members have a particular responsibility to support the UN appeal for Syria," he explained.