I think you have one zero too many. The figure I heard was close to 5,000. From the US maybe 300 to 400.
http://www.thegatewaypundit.com/2015/11/report-at-least-50000-europeans-have-left-home-to-join-isis/
Gateway Pundit.
yeah, i was really shocked too
i wonder how long they’ve known the true number.
maybe 5000 have come back.
good luck Europe