After Iraq and Syria, Lebanon appears to be the next theatre of operations for the radical Islamic State organisation. Arsal, a remote town on the Syrian border, has become the main outpost for the group, and a byword for militancy for the rest of the country. Since 2011, Syrian refugees have fled across the border en masse from the nearby towns of Homs, Quseir and Yabroud, after the towns were recaptured by the Syrian army.