The Chechen Jihadists fighting in Syria
16 December 2013 Last updated at 17:15 GMT
As the fighting in Syria continues, battles are increasingly being fought by foreign militants.
Evidence has emerged that a number of these fighters come from a small, remote valley in Georgia - home to just 15,000 ethnic Chechens.
Chechen rebels have fought two wars with Russia, and the Chechen fighters in Syria say they are training for battles at home.
Murad Batal al-Shishani has visited the Pankisi Valley to find out about the men fighting jihad hundreds of kilometres away in Syria.