On the eve of another Supporting Syria conference in Brussels, we look at the story so far on the 2016 pledge to deliver education to all.

More than eight years ago, civil war broke out in Syria and has raged ever since.

Most of its victims have been the innocents - families uprooted and fleeing their homes, children whose lives were turned upside down.

One result is that a third of school-age Syrians - about three million - currently are denied an education. They include over 800,000, or 40% of the refugees living in Turkey, Lebanon, Jordan, Iraq and Egypt.

Three years ago, global leaders met at a Supporting Syria and the Region conference in London and promised to get every child into school. There has been progress but not enough. Theirworld's #YouPromised campaigning has been pushing ever since for that pledge to be kept.

Tomorrow the latest Supporting Syria conference will begin in Brussels. It will aim to raise funds from international donors - but it must also tackle the broken promise made to hundreds of thousands of children in 2016.

So how did we get here?

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