Syria Terrorist groups - home based

al-Nusrah Front: aim(s): overthrow Syrian President Bashar al-ASAD's regime, absorb like-minded Syrian rebel groups, and ultimately, establish a regional Islamic caliphate
area(s) of operation: headquartered in the northwestern Idlib Governorate, with a minor presence in Halab Governorate; operational primarily in northern, western, and southern Syria; installs Sharia in areas under its control; targets primarily Syrian regime and pro-regime forces, some minorities, other Syrian insurgent groups, and occasionally Western interests (2018)

Hay'at Tahrir al-Sham (HTS): aim(s): an alias of the al-Nusrah Front; overthrow Syrian President Bashar al-ASAD's regime, absorb like-minded Syrian rebel groups, and, ultimately, establish a regional Islamic caliphate
area(s) of operation: Northwest Syria (2018)

Islamic State of Iraq and ash-Sham (ISIS): aim(s): replace the world order with a global Islamic state based in Iraq and Syria; expand its branches and networks in other countries; rule according to ISIS's strict interpretation of Islamic law
area(s) of operation: ISIS has lost most of the territory it once controlled and now its overt territorial control is limited to pockets of land along the Syria-Iraq border and in southern Syria (2018)