Turkish-backed Free Syrian Army

The Turkey-backed Free Syrian Army (abbreviated as TFSA), some reorganized as the Syrian National Army by Turkey since 30 May 2017, is an informal armed Syrian opposition structure mainly composed of Syrian Arab and Syrian Turkmen rebels operating in northern Syria, mostly being a part of Operation Euphrates Shield or groups active in the area that are allied to the groups participating in the operation. The general aim of the group is to assist Turkey in creating a "safe zone" in Syria and to establish a National Army, which will operate in the land gained as a result of Operation Euphrates Shield/Hawar Kilis Operations Room. They are opponents of the Syrian Democratic Forces (SDF), ISIL and the Syrian government's Syrian Arab Army, though as yet, they have had few engagements against the Syrian Army. The TFSA also have a law enforcement equivalent, with the also Turkey-backed though separate from the TFSA, the Free Police.

The members consist from Arabs and Turkmens with a smaller amount of Kurds.

The Turkey-backed FSA are the main non-Turkish Armed Forces component of Operation Euphrates Shield. The name is a misnomer, as they are distinct from the Free Syrian Army; their wages are paid for by the Turkish government, they operate alongside the Turkish Armed Forces, and they are generally not local to the area they operate in. Their chain of command has no connection to the Free Syrian Army. Injured Turkey-backed FSA troops have been treated in Turkey. The Turkey-backed Free Syrian Army are also distinguishable from other Free Syrian Army (FSA) groups because they have attacked YPG and other SDF units, which the FSA generally has not done (besides occasional skirmishes on Afrin's southern border with Idlib-based groups), while they have refrained from attacking the Syrian Arab Army, the main opponent of most FSA groups.

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Wikipedia