The Free Syrian Army, which many in the West view as a moderate armed opposition, is a Syrian militia group that has been fighting both President Bashar Assad’s forces and ISIL.
Some Gulf kingdoms, as well as Turkey and the United States are supplying weapons to the FSA and helping train new conscripts.
According to the Syrian authorities, many FSA units have recently been siding with the Islamic State and Jabhat an-Nusra terrorists in their fight against the government forces.
Russia has consistently been holding out for a political solution to the Syrian conflict and for a dialogue with the opposition, including the Free Syrian Army.
Moscow recently asked Britain and the US to help establish direct contact with the FSA leaders.
Foreign Minister Sergei Lavrov said that Russia did not consider the FSA as a terrorist organization and was ready to negotiate.