A file photo shows Lebanese army soldiers marching during a military parade commemorating the 76th anniversary of Lebanese independence from France at the Defence Ministry headquarters in Yarze. (Photo: AFP)
A Black Hawk helicopter lands next to an Apache helicopter at a U.S. military base at an undisclosed location in Eastern Syria, Monday, Nov. 11, 2019 (Photo: 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)