 As part of HTS, the group fought in an northwestern Syria campaign of late 2017–early 2018 and the offensive in mid-2019.On 19 May 2019, during the latter offensive, LMA emir Mansur Dagestani was killed in combat in the northern Hama Governorate.In June of 2020, resentment to the truce declared that ended the 2019-20 Northwestern Syria offensive, Liwa al-Muhajireen wal-Ansar split from Hayat Tahrir al-Sham, and joined several other jihadist groups including the Guardians of Religion Organization and the Ansar al-Din Front in forming the Be Steadfast Operations Room.