What is "al-shaitat"

Al-Shaitat (الشعيطات transcription: aš-šuʿayṭāt), in Standard Arabic al-Shuʿaytāt, is an Sunni Arab tribe located in Deir ez-Zor Governorate in eastern Syria. It is numbered between 70,000-90,000 and is led by Sheikh Rafaa Aakla al Raju. Since July 2014, the tribe has been in conflict with the Islamic State. In the local Arab dialect the "u" is not pronounced and since the ʿayn sound often is not transcribed, the name is written Shaitat, Shaytat, Sheitat, Sheitaat and the like. The last vowel is long, therefore sometimes it is written with a double "a".