Syria fact (estimate) of the day

U.S. counterterrorism officials reported in February that more than 20,000 foreign fighters have joined the fray in Syria to fight with the rebels, with most going to help the Islamic State. Of these, 150 or so are from the United States and over 3,000 are from the West.

According to British scholar Peter Neumann, the Syria conflict has generated more foreign fighters than Afghanistan, post-2003 Iraq, Somalia, Mali and other fields of jihad combined.

That is from Daniel Byman at Monkey Cage, with other points at the link.