“The ouster of Syrian President Bashar al-Assad, after rebel forces swept into Damascus this weekend, shattered Iran's network of influence in the Middle East but Israel, the United States and Arab powers must now deal with the risk of instability and extremism from the mosaic of forces that replaces him. Chief among the rebel forces that ended 50 years of brutal dynastic rule by Assad and his father was Hayat Tahrir al-Sham (HTS), a Sunni Muslim group previously affiliated with Al Qaeda that is designated as a terrorist organization by the U.S. and the U.N. Western and Arab nations fear that the HTS-led rebel coalition may seek to replace Assad's regime with a hardline Islamist government, or one less able or inclined to prevent the resurgence of radical forces, three diplomats and three analysts told Reuters.”