
Syria's interim government signed a deal Monday with the Kurdish-led authority that controls the country’s northeast, including a ceasefire and the merging of the main U.S.-backed force there into the Syrian army.
The deal is a major breakthrough that would bring most of Syria under the control of the government, which is led by the Islamist group Hayat Tahrir al-Sham that led the ouster of President Bashar Assad in December.