[14][15] On December 24, the MFS released photographs showing its members in control of the Assyrian village of Ghardukah, located 8 kilometres (5.0 mi) south of Qahtaniyah (Tirbespiyê/Qabre Hewore).

[16] The village church had been completely destroyed by Jabhat al-Nusra, which occupied the hamlet before being expelled in mid-October during an operation launched by the People's Protection Units (YPG),[17] in which MFS members may have participated.

[18][19][20] The MFS was a part of a YPG-led offensive against Jabhat al-Nusra and the Islamic State of Iraq and the Levant (ISIL), which began on 26 December 2013 in the Tel Hamis area.

[21] The YPG and MFS were unable to hold Tell Brak and failed to capture Tel Hamis, and the offensive was called off in early January.

[24] the Islamic State launched a series of attacks in late February 2015 against Christian villages in the Khabur River valley,[25] with the ultimate goal of capturing the strategic town of Tel Tamer, then under control of the YPG and MFS.

The SDF, which also includes the YPG, YPJ, MFS, al-Sanadid Forces, the Liberation Brigade, and the Army of Revolutionaries, captured the town of al-Hawl on 13 November.

[32][33] On 22 January 2017, the European Syriac Union in Brussels requested the United States and its Trump administration to provide more support for the Assyrian and Kurdish components of the Syrian Democratic Forces.