Fighters from Western countries, including the United States, are joining the ranks of the US-backed Syrian Democratic Forces.

They are taking on the Islamic State of Iraq and the Levant (ISIL, also known as ISIS) group.

They will be at the forefront of an attack being planned around the city of Raqqa, the last major stronghold of ISIL in Syria.

Al Jazeera’s Andrew Simmons reports from Beirut.

Middle East, War & Conflict