A US-backed Syrian Democratic Forces (SDF) fighter stands next to an armored vehicle, at al-Sabha town in the eastern countryside of Deir ez-Zor, Syria, Sept. 4, 2023. (Photo: Baderkhan Ahmad/ AP)
ISIS has previously carried out mass killings following military assaults in Iraq and Syria, including the slaughter of hundreds of members of the al-Sheitat tribe in Deir ez-Zor in 2014. (Photo: AFP)
US soldiers patrol an area on the outskirts of Rumaylan in Syria's Kurdish-controlled northeastern Hasakeh province on December 11, 2023 (Photo: AFP/Delil Souleman)
A United States soldier looks on while an AH-64 Apache assault helicopter flies above during a patrol by the Suwaydiyah oil fields in Hassakeh province, northeastern Syria, Feb. 13, 2021. (Photo: AFP)
US Air Force aircrew, maintenance, weapons, and fuels Airmen conduct an integrated combat turn for an F-15E Strike Eagle in the US Central Command area of responsibility, Oct. 13, 2023 (Photo: US Air Force photo by Airman 1st Class Yendi Bo
A US-backed Syrian Democratic Forces (SDF) fighter stands next to an armored vehicle, at al-Sabha town in the eastern countryside of Deir ez-Zor, Syria, Sept. 4, 2023. (Photo: Baderkhan Ahmad/ AP)
Fighters of the Syrian Democratic Forces (SDF) stands guard along a road as others deploy to impose a curfew in the town of al-Busayrah in Syria's northeastern Deir ez-Zor province on September 4, 2023 (Photo: Delil Souleman/AFP)
A U.S. soldier looks on while an AH-64 Apache assault helicopter flies above during a patrol by the Suwaydiyah oil fields in Hassakeh province, northeastern Syria, Feb. 13, 2021. (Photo: AFP)
Fighters of the Syrian Democratic Forces (SDF) stands guard along a road as others deploy to impose a curfew in the town of al-Busayrah in Syria's northeastern Deir ez-Zor province on September 4, 2023 (Photo: Delil Souleman/AFP)
