Syrian refugees arriving on a boat
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Syrian migration to Europe - why is it happening now?

10 September 2015 Last updated at 05:34 BST

Thousands of Syrian refugees have travelled to Europe, fleeing war in their country and seeking somewhere safe to live.

The civil war has been raging in Syria for a long time, but the numbers of refugees heading to Europe has increased substantially in recent months.

What are the push and pull factors that have led to this surge in people moving?